3579 lines
153 KiB
Java
3579 lines
153 KiB
Java
/*
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* Copyright (C) 2014 The Android Open Source Project
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* Copyright (c) 1996, 2010, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package java.sql;
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/**
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* Comprehensive information about the database as a whole.
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* <P>
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* This interface is implemented by driver vendors to let users know the capabilities
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* of a Database Management System (DBMS) in combination with
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* the driver based on JDBC<sup><font size=-2>TM</font></sup> technology
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* ("JDBC driver") that is used with it. Different relational DBMSs often support
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* different features, implement features in different ways, and use different
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* data types. In addition, a driver may implement a feature on top of what the
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* DBMS offers. Information returned by methods in this interface applies
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* to the capabilities of a particular driver and a particular DBMS working
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* together. Note that as used in this documentation, the term "database" is
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* used generically to refer to both the driver and DBMS.
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* <P>
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* A user for this interface is commonly a tool that needs to discover how to
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* deal with the underlying DBMS. This is especially true for applications
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* that are intended to be used with more than one DBMS. For example, a tool might use the method
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* <code>getTypeInfo</code> to find out what data types can be used in a
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* <code>CREATE TABLE</code> statement. Or a user might call the method
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* <code>supportsCorrelatedSubqueries</code> to see if it is possible to use
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* a correlated subquery or <code>supportsBatchUpdates</code> to see if it is
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* possible to use batch updates.
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* <P>
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* Some <code>DatabaseMetaData</code> methods return lists of information
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* in the form of <code>ResultSet</code> objects.
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* Regular <code>ResultSet</code> methods, such as
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* <code>getString</code> and <code>getInt</code>, can be used
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* to retrieve the data from these <code>ResultSet</code> objects. If
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* a given form of metadata is not available, an empty <code>ResultSet</code>
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* will be returned. Additional columns beyond the columns defined to be
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* returned by the <code>ResultSet</code> object for a given method
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* can be defined by the JDBC driver vendor and must be accessed
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* by their <B>column label</B>.
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* <P>
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* Some <code>DatabaseMetaData</code> methods take arguments that are
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* String patterns. These arguments all have names such as fooPattern.
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* Within a pattern String, "%" means match any substring of 0 or more
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* characters, and "_" means match any one character. Only metadata
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* entries matching the search pattern are returned. If a search pattern
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* argument is set to <code>null</code>, that argument's criterion will
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* be dropped from the search.
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* <P>
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*/
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public interface DatabaseMetaData extends Wrapper {
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//----------------------------------------------------------------------
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// First, a variety of minor information about the target database.
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/**
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* Retrieves whether the current user can call all the procedures
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* returned by the method <code>getProcedures</code>.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean allProceduresAreCallable() throws SQLException;
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/**
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* Retrieves whether the current user can use all the tables returned
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* by the method <code>getTables</code> in a <code>SELECT</code>
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* statement.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean allTablesAreSelectable() throws SQLException;
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/**
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* Retrieves the URL for this DBMS.
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*
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* @return the URL for this DBMS or <code>null</code> if it cannot be
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* generated
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* @exception SQLException if a database access error occurs
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*/
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String getURL() throws SQLException;
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/**
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* Retrieves the user name as known to this database.
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*
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* @return the database user name
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* @exception SQLException if a database access error occurs
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*/
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String getUserName() throws SQLException;
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/**
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* Retrieves whether this database is in read-only mode.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean isReadOnly() throws SQLException;
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/**
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* Retrieves whether <code>NULL</code> values are sorted high.
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* Sorted high means that <code>NULL</code> values
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* sort higher than any other value in a domain. In an ascending order,
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* if this method returns <code>true</code>, <code>NULL</code> values
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* will appear at the end. By contrast, the method
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* <code>nullsAreSortedAtEnd</code> indicates whether <code>NULL</code> values
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* are sorted at the end regardless of sort order.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean nullsAreSortedHigh() throws SQLException;
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/**
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* Retrieves whether <code>NULL</code> values are sorted low.
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* Sorted low means that <code>NULL</code> values
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* sort lower than any other value in a domain. In an ascending order,
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* if this method returns <code>true</code>, <code>NULL</code> values
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* will appear at the beginning. By contrast, the method
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* <code>nullsAreSortedAtStart</code> indicates whether <code>NULL</code> values
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* are sorted at the beginning regardless of sort order.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean nullsAreSortedLow() throws SQLException;
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/**
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* Retrieves whether <code>NULL</code> values are sorted at the start regardless
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* of sort order.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean nullsAreSortedAtStart() throws SQLException;
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/**
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* Retrieves whether <code>NULL</code> values are sorted at the end regardless of
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* sort order.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean nullsAreSortedAtEnd() throws SQLException;
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/**
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* Retrieves the name of this database product.
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*
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* @return database product name
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* @exception SQLException if a database access error occurs
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*/
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String getDatabaseProductName() throws SQLException;
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/**
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* Retrieves the version number of this database product.
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*
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* @return database version number
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* @exception SQLException if a database access error occurs
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*/
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String getDatabaseProductVersion() throws SQLException;
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/**
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* Retrieves the name of this JDBC driver.
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*
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* @return JDBC driver name
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* @exception SQLException if a database access error occurs
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*/
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String getDriverName() throws SQLException;
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/**
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* Retrieves the version number of this JDBC driver as a <code>String</code>.
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*
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* @return JDBC driver version
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* @exception SQLException if a database access error occurs
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*/
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String getDriverVersion() throws SQLException;
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/**
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* Retrieves this JDBC driver's major version number.
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*
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* @return JDBC driver major version
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*/
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int getDriverMajorVersion();
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/**
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* Retrieves this JDBC driver's minor version number.
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*
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* @return JDBC driver minor version number
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*/
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int getDriverMinorVersion();
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/**
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* Retrieves whether this database stores tables in a local file.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean usesLocalFiles() throws SQLException;
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/**
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* Retrieves whether this database uses a file for each table.
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*
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* @return <code>true</code> if this database uses a local file for each table;
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* <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean usesLocalFilePerTable() throws SQLException;
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/**
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* Retrieves whether this database treats mixed case unquoted SQL identifiers as
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* case sensitive and as a result stores them in mixed case.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean supportsMixedCaseIdentifiers() throws SQLException;
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/**
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* Retrieves whether this database treats mixed case unquoted SQL identifiers as
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* case insensitive and stores them in upper case.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean storesUpperCaseIdentifiers() throws SQLException;
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/**
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* Retrieves whether this database treats mixed case unquoted SQL identifiers as
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* case insensitive and stores them in lower case.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean storesLowerCaseIdentifiers() throws SQLException;
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/**
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* Retrieves whether this database treats mixed case unquoted SQL identifiers as
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* case insensitive and stores them in mixed case.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean storesMixedCaseIdentifiers() throws SQLException;
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/**
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* Retrieves whether this database treats mixed case quoted SQL identifiers as
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* case sensitive and as a result stores them in mixed case.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean supportsMixedCaseQuotedIdentifiers() throws SQLException;
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/**
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* Retrieves whether this database treats mixed case quoted SQL identifiers as
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* case insensitive and stores them in upper case.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean storesUpperCaseQuotedIdentifiers() throws SQLException;
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/**
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* Retrieves whether this database treats mixed case quoted SQL identifiers as
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* case insensitive and stores them in lower case.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean storesLowerCaseQuotedIdentifiers() throws SQLException;
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/**
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* Retrieves whether this database treats mixed case quoted SQL identifiers as
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* case insensitive and stores them in mixed case.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean storesMixedCaseQuotedIdentifiers() throws SQLException;
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/**
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* Retrieves the string used to quote SQL identifiers.
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* This method returns a space " " if identifier quoting is not supported.
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*
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* @return the quoting string or a space if quoting is not supported
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* @exception SQLException if a database access error occurs
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*/
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String getIdentifierQuoteString() throws SQLException;
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/**
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* Retrieves a comma-separated list of all of this database's SQL keywords
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* that are NOT also SQL:2003 keywords.
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*
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* @return the list of this database's keywords that are not also
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* SQL:2003 keywords
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* @exception SQLException if a database access error occurs
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*/
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String getSQLKeywords() throws SQLException;
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/**
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* Retrieves a comma-separated list of math functions available with
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* this database. These are the Open /Open CLI math function names used in
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* the JDBC function escape clause.
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*
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* @return the list of math functions supported by this database
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* @exception SQLException if a database access error occurs
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*/
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String getNumericFunctions() throws SQLException;
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/**
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* Retrieves a comma-separated list of string functions available with
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* this database. These are the Open Group CLI string function names used
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* in the JDBC function escape clause.
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*
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* @return the list of string functions supported by this database
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* @exception SQLException if a database access error occurs
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*/
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String getStringFunctions() throws SQLException;
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/**
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* Retrieves a comma-separated list of system functions available with
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* this database. These are the Open Group CLI system function names used
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* in the JDBC function escape clause.
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*
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* @return a list of system functions supported by this database
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* @exception SQLException if a database access error occurs
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*/
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String getSystemFunctions() throws SQLException;
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/**
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* Retrieves a comma-separated list of the time and date functions available
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* with this database.
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*
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* @return the list of time and date functions supported by this database
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* @exception SQLException if a database access error occurs
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*/
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String getTimeDateFunctions() throws SQLException;
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/**
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* Retrieves the string that can be used to escape wildcard characters.
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* This is the string that can be used to escape '_' or '%' in
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* the catalog search parameters that are a pattern (and therefore use one
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* of the wildcard characters).
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*
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* <P>The '_' character represents any single character;
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* the '%' character represents any sequence of zero or
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* more characters.
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*
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* @return the string used to escape wildcard characters
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* @exception SQLException if a database access error occurs
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*/
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String getSearchStringEscape() throws SQLException;
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/**
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* Retrieves all the "extra" characters that can be used in unquoted
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* identifier names (those beyond a-z, A-Z, 0-9 and _).
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*
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* @return the string containing the extra characters
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* @exception SQLException if a database access error occurs
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*/
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String getExtraNameCharacters() throws SQLException;
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//--------------------------------------------------------------------
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// Functions describing which features are supported.
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/**
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* Retrieves whether this database supports <code>ALTER TABLE</code>
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* with add column.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean supportsAlterTableWithAddColumn() throws SQLException;
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/**
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* Retrieves whether this database supports <code>ALTER TABLE</code>
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* with drop column.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean supportsAlterTableWithDropColumn() throws SQLException;
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/**
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* Retrieves whether this database supports column aliasing.
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*
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* <P>If so, the SQL AS clause can be used to provide names for
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* computed columns or to provide alias names for columns as
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* required.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean supportsColumnAliasing() throws SQLException;
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/**
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* Retrieves whether this database supports concatenations between
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* <code>NULL</code> and non-<code>NULL</code> values being
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* <code>NULL</code>.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean nullPlusNonNullIsNull() throws SQLException;
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/**
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* Retrieves whether this database supports the JDBC scalar function
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* <code>CONVERT</code> for the conversion of one JDBC type to another.
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* The JDBC types are the generic SQL data types defined
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* in <code>java.sql.Types</code>.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean supportsConvert() throws SQLException;
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/**
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* Retrieves whether this database supports the JDBC scalar function
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* <code>CONVERT</code> for conversions between the JDBC types <i>fromType</i>
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* and <i>toType</i>. The JDBC types are the generic SQL data types defined
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* in <code>java.sql.Types</code>.
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*
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* @param fromType the type to convert from; one of the type codes from
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* the class <code>java.sql.Types</code>
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* @param toType the type to convert to; one of the type codes from
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* the class <code>java.sql.Types</code>
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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* @see Types
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*/
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boolean supportsConvert(int fromType, int toType) throws SQLException;
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/**
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* Retrieves whether this database supports table correlation names.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean supportsTableCorrelationNames() throws SQLException;
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/**
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* Retrieves whether, when table correlation names are supported, they
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* are restricted to being different from the names of the tables.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean supportsDifferentTableCorrelationNames() throws SQLException;
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|
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/**
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* Retrieves whether this database supports expressions in
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* <code>ORDER BY</code> lists.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean supportsExpressionsInOrderBy() throws SQLException;
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|
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/**
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* Retrieves whether this database supports using a column that is
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* not in the <code>SELECT</code> statement in an
|
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* <code>ORDER BY</code> clause.
|
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean supportsOrderByUnrelated() throws SQLException;
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|
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/**
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* Retrieves whether this database supports some form of
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* <code>GROUP BY</code> clause.
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*
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* @return <code>true</code> if so; <code>false</code> otherwise
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* @exception SQLException if a database access error occurs
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*/
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boolean supportsGroupBy() throws SQLException;
|
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|
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/**
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|
* Retrieves whether this database supports using a column that is
|
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* not in the <code>SELECT</code> statement in a
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* <code>GROUP BY</code> clause.
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|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsGroupByUnrelated() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports using columns not included in
|
|
* the <code>SELECT</code> statement in a <code>GROUP BY</code> clause
|
|
* provided that all of the columns in the <code>SELECT</code> statement
|
|
* are included in the <code>GROUP BY</code> clause.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsGroupByBeyondSelect() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports specifying a
|
|
* <code>LIKE</code> escape clause.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsLikeEscapeClause() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports getting multiple
|
|
* <code>ResultSet</code> objects from a single call to the
|
|
* method <code>execute</code>.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsMultipleResultSets() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database allows having multiple
|
|
* transactions open at once (on different connections).
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsMultipleTransactions() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether columns in this database may be defined as non-nullable.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsNonNullableColumns() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports the ODBC Minimum SQL grammar.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsMinimumSQLGrammar() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports the ODBC Core SQL grammar.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsCoreSQLGrammar() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports the ODBC Extended SQL grammar.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsExtendedSQLGrammar() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports the ANSI92 entry level SQL
|
|
* grammar.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsANSI92EntryLevelSQL() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports the ANSI92 intermediate SQL grammar supported.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsANSI92IntermediateSQL() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports the ANSI92 full SQL grammar supported.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsANSI92FullSQL() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports the SQL Integrity
|
|
* Enhancement Facility.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsIntegrityEnhancementFacility() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports some form of outer join.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsOuterJoins() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports full nested outer joins.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsFullOuterJoins() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database provides limited support for outer
|
|
* joins. (This will be <code>true</code> if the method
|
|
* <code>supportsFullOuterJoins</code> returns <code>true</code>).
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsLimitedOuterJoins() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the database vendor's preferred term for "schema".
|
|
*
|
|
* @return the vendor term for "schema"
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
String getSchemaTerm() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the database vendor's preferred term for "procedure".
|
|
*
|
|
* @return the vendor term for "procedure"
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
String getProcedureTerm() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the database vendor's preferred term for "catalog".
|
|
*
|
|
* @return the vendor term for "catalog"
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
String getCatalogTerm() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether a catalog appears at the start of a fully qualified
|
|
* table name. If not, the catalog appears at the end.
|
|
*
|
|
* @return <code>true</code> if the catalog name appears at the beginning
|
|
* of a fully qualified table name; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean isCatalogAtStart() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the <code>String</code> that this database uses as the
|
|
* separator between a catalog and table name.
|
|
*
|
|
* @return the separator string
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
String getCatalogSeparator() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether a schema name can be used in a data manipulation statement.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsSchemasInDataManipulation() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether a schema name can be used in a procedure call statement.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsSchemasInProcedureCalls() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether a schema name can be used in a table definition statement.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsSchemasInTableDefinitions() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether a schema name can be used in an index definition statement.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsSchemasInIndexDefinitions() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether a schema name can be used in a privilege definition statement.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsSchemasInPrivilegeDefinitions() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether a catalog name can be used in a data manipulation statement.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsCatalogsInDataManipulation() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether a catalog name can be used in a procedure call statement.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsCatalogsInProcedureCalls() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether a catalog name can be used in a table definition statement.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsCatalogsInTableDefinitions() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether a catalog name can be used in an index definition statement.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsCatalogsInIndexDefinitions() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether a catalog name can be used in a privilege definition statement.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsCatalogsInPrivilegeDefinitions() throws SQLException;
|
|
|
|
|
|
/**
|
|
* Retrieves whether this database supports positioned <code>DELETE</code>
|
|
* statements.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsPositionedDelete() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports positioned <code>UPDATE</code>
|
|
* statements.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsPositionedUpdate() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports <code>SELECT FOR UPDATE</code>
|
|
* statements.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsSelectForUpdate() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports stored procedure calls
|
|
* that use the stored procedure escape syntax.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsStoredProcedures() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports subqueries in comparison
|
|
* expressions.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsSubqueriesInComparisons() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports subqueries in
|
|
* <code>EXISTS</code> expressions.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsSubqueriesInExists() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports subqueries in
|
|
* <code>IN</code> expressions.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsSubqueriesInIns() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports subqueries in quantified
|
|
* expressions.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsSubqueriesInQuantifieds() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports correlated subqueries.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsCorrelatedSubqueries() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports SQL <code>UNION</code>.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsUnion() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports SQL <code>UNION ALL</code>.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsUnionAll() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports keeping cursors open
|
|
* across commits.
|
|
*
|
|
* @return <code>true</code> if cursors always remain open;
|
|
* <code>false</code> if they might not remain open
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsOpenCursorsAcrossCommit() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports keeping cursors open
|
|
* across rollbacks.
|
|
*
|
|
* @return <code>true</code> if cursors always remain open;
|
|
* <code>false</code> if they might not remain open
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsOpenCursorsAcrossRollback() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports keeping statements open
|
|
* across commits.
|
|
*
|
|
* @return <code>true</code> if statements always remain open;
|
|
* <code>false</code> if they might not remain open
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsOpenStatementsAcrossCommit() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports keeping statements open
|
|
* across rollbacks.
|
|
*
|
|
* @return <code>true</code> if statements always remain open;
|
|
* <code>false</code> if they might not remain open
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsOpenStatementsAcrossRollback() throws SQLException;
|
|
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
// The following group of methods exposes various limitations
|
|
// based on the target database with the current driver.
|
|
// Unless otherwise specified, a result of zero means there is no
|
|
// limit, or the limit is not known.
|
|
|
|
/**
|
|
* Retrieves the maximum number of hex characters this database allows in an
|
|
* inline binary literal.
|
|
*
|
|
* @return max the maximum length (in hex characters) for a binary literal;
|
|
* a result of zero means that there is no limit or the limit
|
|
* is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxBinaryLiteralLength() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of characters this database allows
|
|
* for a character literal.
|
|
*
|
|
* @return the maximum number of characters allowed for a character literal;
|
|
* a result of zero means that there is no limit or the limit is
|
|
* not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxCharLiteralLength() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of characters this database allows
|
|
* for a column name.
|
|
*
|
|
* @return the maximum number of characters allowed for a column name;
|
|
* a result of zero means that there is no limit or the limit
|
|
* is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxColumnNameLength() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of columns this database allows in a
|
|
* <code>GROUP BY</code> clause.
|
|
*
|
|
* @return the maximum number of columns allowed;
|
|
* a result of zero means that there is no limit or the limit
|
|
* is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxColumnsInGroupBy() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of columns this database allows in an index.
|
|
*
|
|
* @return the maximum number of columns allowed;
|
|
* a result of zero means that there is no limit or the limit
|
|
* is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxColumnsInIndex() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of columns this database allows in an
|
|
* <code>ORDER BY</code> clause.
|
|
*
|
|
* @return the maximum number of columns allowed;
|
|
* a result of zero means that there is no limit or the limit
|
|
* is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxColumnsInOrderBy() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of columns this database allows in a
|
|
* <code>SELECT</code> list.
|
|
*
|
|
* @return the maximum number of columns allowed;
|
|
* a result of zero means that there is no limit or the limit
|
|
* is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxColumnsInSelect() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of columns this database allows in a table.
|
|
*
|
|
* @return the maximum number of columns allowed;
|
|
* a result of zero means that there is no limit or the limit
|
|
* is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxColumnsInTable() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of concurrent connections to this
|
|
* database that are possible.
|
|
*
|
|
* @return the maximum number of active connections possible at one time;
|
|
* a result of zero means that there is no limit or the limit
|
|
* is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxConnections() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of characters that this database allows in a
|
|
* cursor name.
|
|
*
|
|
* @return the maximum number of characters allowed in a cursor name;
|
|
* a result of zero means that there is no limit or the limit
|
|
* is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxCursorNameLength() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of bytes this database allows for an
|
|
* index, including all of the parts of the index.
|
|
*
|
|
* @return the maximum number of bytes allowed; this limit includes the
|
|
* composite of all the constituent parts of the index;
|
|
* a result of zero means that there is no limit or the limit
|
|
* is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxIndexLength() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of characters that this database allows in a
|
|
* schema name.
|
|
*
|
|
* @return the maximum number of characters allowed in a schema name;
|
|
* a result of zero means that there is no limit or the limit
|
|
* is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxSchemaNameLength() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of characters that this database allows in a
|
|
* procedure name.
|
|
*
|
|
* @return the maximum number of characters allowed in a procedure name;
|
|
* a result of zero means that there is no limit or the limit
|
|
* is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxProcedureNameLength() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of characters that this database allows in a
|
|
* catalog name.
|
|
*
|
|
* @return the maximum number of characters allowed in a catalog name;
|
|
* a result of zero means that there is no limit or the limit
|
|
* is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxCatalogNameLength() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of bytes this database allows in
|
|
* a single row.
|
|
*
|
|
* @return the maximum number of bytes allowed for a row; a result of
|
|
* zero means that there is no limit or the limit is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxRowSize() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether the return value for the method
|
|
* <code>getMaxRowSize</code> includes the SQL data types
|
|
* <code>LONGVARCHAR</code> and <code>LONGVARBINARY</code>.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean doesMaxRowSizeIncludeBlobs() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of characters this database allows in
|
|
* an SQL statement.
|
|
*
|
|
* @return the maximum number of characters allowed for an SQL statement;
|
|
* a result of zero means that there is no limit or the limit
|
|
* is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxStatementLength() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of active statements to this database
|
|
* that can be open at the same time.
|
|
*
|
|
* @return the maximum number of statements that can be open at one time;
|
|
* a result of zero means that there is no limit or the limit
|
|
* is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxStatements() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of characters this database allows in
|
|
* a table name.
|
|
*
|
|
* @return the maximum number of characters allowed for a table name;
|
|
* a result of zero means that there is no limit or the limit
|
|
* is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxTableNameLength() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of tables this database allows in a
|
|
* <code>SELECT</code> statement.
|
|
*
|
|
* @return the maximum number of tables allowed in a <code>SELECT</code>
|
|
* statement; a result of zero means that there is no limit or
|
|
* the limit is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxTablesInSelect() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the maximum number of characters this database allows in
|
|
* a user name.
|
|
*
|
|
* @return the maximum number of characters allowed for a user name;
|
|
* a result of zero means that there is no limit or the limit
|
|
* is not known
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
int getMaxUserNameLength() throws SQLException;
|
|
|
|
//----------------------------------------------------------------------
|
|
|
|
/**
|
|
* Retrieves this database's default transaction isolation level. The
|
|
* possible values are defined in <code>java.sql.Connection</code>.
|
|
*
|
|
* @return the default isolation level
|
|
* @exception SQLException if a database access error occurs
|
|
* @see Connection
|
|
*/
|
|
int getDefaultTransactionIsolation() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports transactions. If not, invoking the
|
|
* method <code>commit</code> is a noop, and the isolation level is
|
|
* <code>TRANSACTION_NONE</code>.
|
|
*
|
|
* @return <code>true</code> if transactions are supported;
|
|
* <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsTransactions() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports the given transaction isolation level.
|
|
*
|
|
* @param level one of the transaction isolation levels defined in
|
|
* <code>java.sql.Connection</code>
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @see Connection
|
|
*/
|
|
boolean supportsTransactionIsolationLevel(int level)
|
|
throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports both data definition and
|
|
* data manipulation statements within a transaction.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsDataDefinitionAndDataManipulationTransactions()
|
|
throws SQLException;
|
|
/**
|
|
* Retrieves whether this database supports only data manipulation
|
|
* statements within a transaction.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean supportsDataManipulationTransactionsOnly()
|
|
throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether a data definition statement within a transaction forces
|
|
* the transaction to commit.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean dataDefinitionCausesTransactionCommit()
|
|
throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database ignores a data definition statement
|
|
* within a transaction.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
boolean dataDefinitionIgnoredInTransactions()
|
|
throws SQLException;
|
|
|
|
/**
|
|
* Retrieves a description of the stored procedures available in the given
|
|
* catalog.
|
|
* <P>
|
|
* Only procedure descriptions matching the schema and
|
|
* procedure name criteria are returned. They are ordered by
|
|
* <code>PROCEDURE_CAT</code>, <code>PROCEDURE_SCHEM</code>,
|
|
* <code>PROCEDURE_NAME</code> and <code>SPECIFIC_ NAME</code>.
|
|
*
|
|
* <P>Each procedure description has the the following columns:
|
|
* <OL>
|
|
* <LI><B>PROCEDURE_CAT</B> String => procedure catalog (may be <code>null</code>)
|
|
* <LI><B>PROCEDURE_SCHEM</B> String => procedure schema (may be <code>null</code>)
|
|
* <LI><B>PROCEDURE_NAME</B> String => procedure name
|
|
* <LI> reserved for future use
|
|
* <LI> reserved for future use
|
|
* <LI> reserved for future use
|
|
* <LI><B>REMARKS</B> String => explanatory comment on the procedure
|
|
* <LI><B>PROCEDURE_TYPE</B> short => kind of procedure:
|
|
* <UL>
|
|
* <LI> procedureResultUnknown - Cannot determine if a return value
|
|
* will be returned
|
|
* <LI> procedureNoResult - Does not return a return value
|
|
* <LI> procedureReturnsResult - Returns a return value
|
|
* </UL>
|
|
* <LI><B>SPECIFIC_NAME</B> String => The name which uniquely identifies this
|
|
* procedure within its schema.
|
|
* </OL>
|
|
* <p>
|
|
* A user may not have permissions to execute any of the procedures that are
|
|
* returned by <code>getProcedures</code>
|
|
*
|
|
* @param catalog a catalog name; must match the catalog name as it
|
|
* is stored in the database; "" retrieves those without a catalog;
|
|
* <code>null</code> means that the catalog name should not be used to narrow
|
|
* the search
|
|
* @param schemaPattern a schema name pattern; must match the schema name
|
|
* as it is stored in the database; "" retrieves those without a schema;
|
|
* <code>null</code> means that the schema name should not be used to narrow
|
|
* the search
|
|
* @param procedureNamePattern a procedure name pattern; must match the
|
|
* procedure name as it is stored in the database
|
|
* @return <code>ResultSet</code> - each row is a procedure description
|
|
* @exception SQLException if a database access error occurs
|
|
* @see #getSearchStringEscape
|
|
*/
|
|
ResultSet getProcedures(String catalog, String schemaPattern,
|
|
String procedureNamePattern) throws SQLException;
|
|
|
|
/**
|
|
* Indicates that it is not known whether the procedure returns
|
|
* a result.
|
|
* <P>
|
|
* A possible value for column <code>PROCEDURE_TYPE</code> in the
|
|
* <code>ResultSet</code> object returned by the method
|
|
* <code>getProcedures</code>.
|
|
*/
|
|
int procedureResultUnknown = 0;
|
|
|
|
/**
|
|
* Indicates that the procedure does not return a result.
|
|
* <P>
|
|
* A possible value for column <code>PROCEDURE_TYPE</code> in the
|
|
* <code>ResultSet</code> object returned by the method
|
|
* <code>getProcedures</code>.
|
|
*/
|
|
int procedureNoResult = 1;
|
|
|
|
/**
|
|
* Indicates that the procedure returns a result.
|
|
* <P>
|
|
* A possible value for column <code>PROCEDURE_TYPE</code> in the
|
|
* <code>ResultSet</code> object returned by the method
|
|
* <code>getProcedures</code>.
|
|
*/
|
|
int procedureReturnsResult = 2;
|
|
|
|
/**
|
|
* Retrieves a description of the given catalog's stored procedure parameter
|
|
* and result columns.
|
|
*
|
|
* <P>Only descriptions matching the schema, procedure and
|
|
* parameter name criteria are returned. They are ordered by
|
|
* PROCEDURE_CAT, PROCEDURE_SCHEM, PROCEDURE_NAME and SPECIFIC_NAME. Within this, the return value,
|
|
* if any, is first. Next are the parameter descriptions in call
|
|
* order. The column descriptions follow in column number order.
|
|
*
|
|
* <P>Each row in the <code>ResultSet</code> is a parameter description or
|
|
* column description with the following fields:
|
|
* <OL>
|
|
* <LI><B>PROCEDURE_CAT</B> String => procedure catalog (may be <code>null</code>)
|
|
* <LI><B>PROCEDURE_SCHEM</B> String => procedure schema (may be <code>null</code>)
|
|
* <LI><B>PROCEDURE_NAME</B> String => procedure name
|
|
* <LI><B>COLUMN_NAME</B> String => column/parameter name
|
|
* <LI><B>COLUMN_TYPE</B> Short => kind of column/parameter:
|
|
* <UL>
|
|
* <LI> procedureColumnUnknown - nobody knows
|
|
* <LI> procedureColumnIn - IN parameter
|
|
* <LI> procedureColumnInOut - INOUT parameter
|
|
* <LI> procedureColumnOut - OUT parameter
|
|
* <LI> procedureColumnReturn - procedure return value
|
|
* <LI> procedureColumnResult - result column in <code>ResultSet</code>
|
|
* </UL>
|
|
* <LI><B>DATA_TYPE</B> int => SQL type from java.sql.Types
|
|
* <LI><B>TYPE_NAME</B> String => SQL type name, for a UDT type the
|
|
* type name is fully qualified
|
|
* <LI><B>PRECISION</B> int => precision
|
|
* <LI><B>LENGTH</B> int => length in bytes of data
|
|
* <LI><B>SCALE</B> short => scale - null is returned for data types where
|
|
* SCALE is not applicable.
|
|
* <LI><B>RADIX</B> short => radix
|
|
* <LI><B>NULLABLE</B> short => can it contain NULL.
|
|
* <UL>
|
|
* <LI> procedureNoNulls - does not allow NULL values
|
|
* <LI> procedureNullable - allows NULL values
|
|
* <LI> procedureNullableUnknown - nullability unknown
|
|
* </UL>
|
|
* <LI><B>REMARKS</B> String => comment describing parameter/column
|
|
* <LI><B>COLUMN_DEF</B> String => default value for the column, which should be interpreted as a string when the value is enclosed in single quotes (may be <code>null</code>)
|
|
* <UL>
|
|
* <LI> The string NULL (not enclosed in quotes) - if NULL was specified as the default value
|
|
* <LI> TRUNCATE (not enclosed in quotes) - if the specified default value cannot be represented without truncation
|
|
* <LI> NULL - if a default value was not specified
|
|
* </UL>
|
|
* <LI><B>SQL_DATA_TYPE</B> int => reserved for future use
|
|
* <LI><B>SQL_DATETIME_SUB</B> int => reserved for future use
|
|
* <LI><B>CHAR_OCTET_LENGTH</B> int => the maximum length of binary and character based columns. For any other datatype the returned value is a
|
|
* NULL
|
|
* <LI><B>ORDINAL_POSITION</B> int => the ordinal position, starting from 1, for the input and output parameters for a procedure. A value of 0
|
|
*is returned if this row describes the procedure's return value. For result set columns, it is the
|
|
*ordinal position of the column in the result set starting from 1. If there are
|
|
*multiple result sets, the column ordinal positions are implementation
|
|
* defined.
|
|
* <LI><B>IS_NULLABLE</B> String => ISO rules are used to determine the nullability for a column.
|
|
* <UL>
|
|
* <LI> YES --- if the column can include NULLs
|
|
* <LI> NO --- if the column cannot include NULLs
|
|
* <LI> empty string --- if the nullability for the
|
|
* column is unknown
|
|
* </UL>
|
|
* <LI><B>SPECIFIC_NAME</B> String => the name which uniquely identifies this procedure within its schema.
|
|
* </OL>
|
|
*
|
|
* <P><B>Note:</B> Some databases may not return the column
|
|
* descriptions for a procedure.
|
|
*
|
|
* <p>The PRECISION column represents the specified column size for the given column.
|
|
* For numeric data, this is the maximum precision. For character data, this is the length in characters.
|
|
* For datetime datatypes, this is the length in characters of the String representation (assuming the
|
|
* maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype,
|
|
* this is the length in bytes. Null is returned for data types where the
|
|
* column size is not applicable.
|
|
* @param catalog a catalog name; must match the catalog name as it
|
|
* is stored in the database; "" retrieves those without a catalog;
|
|
* <code>null</code> means that the catalog name should not be used to narrow
|
|
* the search
|
|
* @param schemaPattern a schema name pattern; must match the schema name
|
|
* as it is stored in the database; "" retrieves those without a schema;
|
|
* <code>null</code> means that the schema name should not be used to narrow
|
|
* the search
|
|
* @param procedureNamePattern a procedure name pattern; must match the
|
|
* procedure name as it is stored in the database
|
|
* @param columnNamePattern a column name pattern; must match the column name
|
|
* as it is stored in the database
|
|
* @return <code>ResultSet</code> - each row describes a stored procedure parameter or
|
|
* column
|
|
* @exception SQLException if a database access error occurs
|
|
* @see #getSearchStringEscape
|
|
*/
|
|
ResultSet getProcedureColumns(String catalog,
|
|
String schemaPattern,
|
|
String procedureNamePattern,
|
|
String columnNamePattern) throws SQLException;
|
|
|
|
/**
|
|
* Indicates that type of the column is unknown.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>COLUMN_TYPE</code>
|
|
* in the <code>ResultSet</code>
|
|
* returned by the method <code>getProcedureColumns</code>.
|
|
*/
|
|
int procedureColumnUnknown = 0;
|
|
|
|
/**
|
|
* Indicates that the column stores IN parameters.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>COLUMN_TYPE</code>
|
|
* in the <code>ResultSet</code>
|
|
* returned by the method <code>getProcedureColumns</code>.
|
|
*/
|
|
int procedureColumnIn = 1;
|
|
|
|
/**
|
|
* Indicates that the column stores INOUT parameters.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>COLUMN_TYPE</code>
|
|
* in the <code>ResultSet</code>
|
|
* returned by the method <code>getProcedureColumns</code>.
|
|
*/
|
|
int procedureColumnInOut = 2;
|
|
|
|
/**
|
|
* Indicates that the column stores OUT parameters.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>COLUMN_TYPE</code>
|
|
* in the <code>ResultSet</code>
|
|
* returned by the method <code>getProcedureColumns</code>.
|
|
*/
|
|
int procedureColumnOut = 4;
|
|
/**
|
|
* Indicates that the column stores return values.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>COLUMN_TYPE</code>
|
|
* in the <code>ResultSet</code>
|
|
* returned by the method <code>getProcedureColumns</code>.
|
|
*/
|
|
int procedureColumnReturn = 5;
|
|
|
|
/**
|
|
* Indicates that the column stores results.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>COLUMN_TYPE</code>
|
|
* in the <code>ResultSet</code>
|
|
* returned by the method <code>getProcedureColumns</code>.
|
|
*/
|
|
int procedureColumnResult = 3;
|
|
|
|
/**
|
|
* Indicates that <code>NULL</code> values are not allowed.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>NULLABLE</code>
|
|
* in the <code>ResultSet</code> object
|
|
* returned by the method <code>getProcedureColumns</code>.
|
|
*/
|
|
int procedureNoNulls = 0;
|
|
|
|
/**
|
|
* Indicates that <code>NULL</code> values are allowed.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>NULLABLE</code>
|
|
* in the <code>ResultSet</code> object
|
|
* returned by the method <code>getProcedureColumns</code>.
|
|
*/
|
|
int procedureNullable = 1;
|
|
|
|
/**
|
|
* Indicates that whether <code>NULL</code> values are allowed
|
|
* is unknown.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>NULLABLE</code>
|
|
* in the <code>ResultSet</code> object
|
|
* returned by the method <code>getProcedureColumns</code>.
|
|
*/
|
|
int procedureNullableUnknown = 2;
|
|
|
|
|
|
/**
|
|
* Retrieves a description of the tables available in the given catalog.
|
|
* Only table descriptions matching the catalog, schema, table
|
|
* name and type criteria are returned. They are ordered by
|
|
* <code>TABLE_TYPE</code>, <code>TABLE_CAT</code>,
|
|
* <code>TABLE_SCHEM</code> and <code>TABLE_NAME</code>.
|
|
* <P>
|
|
* Each table description has the following columns:
|
|
* <OL>
|
|
* <LI><B>TABLE_CAT</B> String => table catalog (may be <code>null</code>)
|
|
* <LI><B>TABLE_SCHEM</B> String => table schema (may be <code>null</code>)
|
|
* <LI><B>TABLE_NAME</B> String => table name
|
|
* <LI><B>TABLE_TYPE</B> String => table type. Typical types are "TABLE",
|
|
* "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY",
|
|
* "LOCAL TEMPORARY", "ALIAS", "SYNONYM".
|
|
* <LI><B>REMARKS</B> String => explanatory comment on the table
|
|
* <LI><B>TYPE_CAT</B> String => the types catalog (may be <code>null</code>)
|
|
* <LI><B>TYPE_SCHEM</B> String => the types schema (may be <code>null</code>)
|
|
* <LI><B>TYPE_NAME</B> String => type name (may be <code>null</code>)
|
|
* <LI><B>SELF_REFERENCING_COL_NAME</B> String => name of the designated
|
|
* "identifier" column of a typed table (may be <code>null</code>)
|
|
* <LI><B>REF_GENERATION</B> String => specifies how values in
|
|
* SELF_REFERENCING_COL_NAME are created. Values are
|
|
* "SYSTEM", "USER", "DERIVED". (may be <code>null</code>)
|
|
* </OL>
|
|
*
|
|
* <P><B>Note:</B> Some databases may not return information for
|
|
* all tables.
|
|
*
|
|
* @param catalog a catalog name; must match the catalog name as it
|
|
* is stored in the database; "" retrieves those without a catalog;
|
|
* <code>null</code> means that the catalog name should not be used to narrow
|
|
* the search
|
|
* @param schemaPattern a schema name pattern; must match the schema name
|
|
* as it is stored in the database; "" retrieves those without a schema;
|
|
* <code>null</code> means that the schema name should not be used to narrow
|
|
* the search
|
|
* @param tableNamePattern a table name pattern; must match the
|
|
* table name as it is stored in the database
|
|
* @param types a list of table types, which must be from the list of table types
|
|
* returned from {@link #getTableTypes},to include; <code>null</code> returns
|
|
* all types
|
|
* @return <code>ResultSet</code> - each row is a table description
|
|
* @exception SQLException if a database access error occurs
|
|
* @see #getSearchStringEscape
|
|
*/
|
|
ResultSet getTables(String catalog, String schemaPattern,
|
|
String tableNamePattern, String types[]) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the schema names available in this database. The results
|
|
* are ordered by <code>TABLE_CATALOG</code> and
|
|
* <code>TABLE_SCHEM</code>.
|
|
*
|
|
* <P>The schema columns are:
|
|
* <OL>
|
|
* <LI><B>TABLE_SCHEM</B> String => schema name
|
|
* <LI><B>TABLE_CATALOG</B> String => catalog name (may be <code>null</code>)
|
|
* </OL>
|
|
*
|
|
* @return a <code>ResultSet</code> object in which each row is a
|
|
* schema description
|
|
* @exception SQLException if a database access error occurs
|
|
*
|
|
*/
|
|
ResultSet getSchemas() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the catalog names available in this database. The results
|
|
* are ordered by catalog name.
|
|
*
|
|
* <P>The catalog column is:
|
|
* <OL>
|
|
* <LI><B>TABLE_CAT</B> String => catalog name
|
|
* </OL>
|
|
*
|
|
* @return a <code>ResultSet</code> object in which each row has a
|
|
* single <code>String</code> column that is a catalog name
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
ResultSet getCatalogs() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the table types available in this database. The results
|
|
* are ordered by table type.
|
|
*
|
|
* <P>The table type is:
|
|
* <OL>
|
|
* <LI><B>TABLE_TYPE</B> String => table type. Typical types are "TABLE",
|
|
* "VIEW", "SYSTEM TABLE", "GLOBAL TEMPORARY",
|
|
* "LOCAL TEMPORARY", "ALIAS", "SYNONYM".
|
|
* </OL>
|
|
*
|
|
* @return a <code>ResultSet</code> object in which each row has a
|
|
* single <code>String</code> column that is a table type
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
ResultSet getTableTypes() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves a description of table columns available in
|
|
* the specified catalog.
|
|
*
|
|
* <P>Only column descriptions matching the catalog, schema, table
|
|
* and column name criteria are returned. They are ordered by
|
|
* <code>TABLE_CAT</code>,<code>TABLE_SCHEM</code>,
|
|
* <code>TABLE_NAME</code>, and <code>ORDINAL_POSITION</code>.
|
|
*
|
|
* <P>Each column description has the following columns:
|
|
* <OL>
|
|
* <LI><B>TABLE_CAT</B> String => table catalog (may be <code>null</code>)
|
|
* <LI><B>TABLE_SCHEM</B> String => table schema (may be <code>null</code>)
|
|
* <LI><B>TABLE_NAME</B> String => table name
|
|
* <LI><B>COLUMN_NAME</B> String => column name
|
|
* <LI><B>DATA_TYPE</B> int => SQL type from java.sql.Types
|
|
* <LI><B>TYPE_NAME</B> String => Data source dependent type name,
|
|
* for a UDT the type name is fully qualified
|
|
* <LI><B>COLUMN_SIZE</B> int => column size.
|
|
* <LI><B>BUFFER_LENGTH</B> is not used.
|
|
* <LI><B>DECIMAL_DIGITS</B> int => the number of fractional digits. Null is returned for data types where
|
|
* DECIMAL_DIGITS is not applicable.
|
|
* <LI><B>NUM_PREC_RADIX</B> int => Radix (typically either 10 or 2)
|
|
* <LI><B>NULLABLE</B> int => is NULL allowed.
|
|
* <UL>
|
|
* <LI> columnNoNulls - might not allow <code>NULL</code> values
|
|
* <LI> columnNullable - definitely allows <code>NULL</code> values
|
|
* <LI> columnNullableUnknown - nullability unknown
|
|
* </UL>
|
|
* <LI><B>REMARKS</B> String => comment describing column (may be <code>null</code>)
|
|
* <LI><B>COLUMN_DEF</B> String => default value for the column, which should be interpreted as a string when the value is enclosed in single quotes (may be <code>null</code>)
|
|
* <LI><B>SQL_DATA_TYPE</B> int => unused
|
|
* <LI><B>SQL_DATETIME_SUB</B> int => unused
|
|
* <LI><B>CHAR_OCTET_LENGTH</B> int => for char types the
|
|
* maximum number of bytes in the column
|
|
* <LI><B>ORDINAL_POSITION</B> int => index of column in table
|
|
* (starting at 1)
|
|
* <LI><B>IS_NULLABLE</B> String => ISO rules are used to determine the nullability for a column.
|
|
* <UL>
|
|
* <LI> YES --- if the column can include NULLs
|
|
* <LI> NO --- if the column cannot include NULLs
|
|
* <LI> empty string --- if the nullability for the
|
|
* column is unknown
|
|
* </UL>
|
|
* <LI><B>SCOPE_CATALOG</B> String => catalog of table that is the scope
|
|
* of a reference attribute (<code>null</code> if DATA_TYPE isn't REF)
|
|
* <LI><B>SCOPE_SCHEMA</B> String => schema of table that is the scope
|
|
* of a reference attribute (<code>null</code> if the DATA_TYPE isn't REF)
|
|
* <LI><B>SCOPE_TABLE</B> String => table name that this the scope
|
|
* of a reference attribute (<code>null</code> if the DATA_TYPE isn't REF)
|
|
* <LI><B>SOURCE_DATA_TYPE</B> short => source type of a distinct type or user-generated
|
|
* Ref type, SQL type from java.sql.Types (<code>null</code> if DATA_TYPE
|
|
* isn't DISTINCT or user-generated REF)
|
|
* <LI><B>IS_AUTOINCREMENT</B> String => Indicates whether this column is auto incremented
|
|
* <UL>
|
|
* <LI> YES --- if the column is auto incremented
|
|
* <LI> NO --- if the column is not auto incremented
|
|
* <LI> empty string --- if it cannot be determined whether the column is auto incremented
|
|
* </UL>
|
|
* <LI><B>IS_GENERATEDCOLUMN</B> String => Indicates whether this is a generated column
|
|
* <UL>
|
|
* <LI> YES --- if this a generated column
|
|
* <LI> NO --- if this not a generated column
|
|
* <LI> empty string --- if it cannot be determined whether this is a generated column
|
|
* </UL>
|
|
* </OL>
|
|
*
|
|
* <p>The COLUMN_SIZE column specifies the column size for the given column.
|
|
* For numeric data, this is the maximum precision. For character data, this is the length in characters.
|
|
* For datetime datatypes, this is the length in characters of the String representation (assuming the
|
|
* maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype,
|
|
* this is the length in bytes. Null is returned for data types where the
|
|
* column size is not applicable.
|
|
*
|
|
* @param catalog a catalog name; must match the catalog name as it
|
|
* is stored in the database; "" retrieves those without a catalog;
|
|
* <code>null</code> means that the catalog name should not be used to narrow
|
|
* the search
|
|
* @param schemaPattern a schema name pattern; must match the schema name
|
|
* as it is stored in the database; "" retrieves those without a schema;
|
|
* <code>null</code> means that the schema name should not be used to narrow
|
|
* the search
|
|
* @param tableNamePattern a table name pattern; must match the
|
|
* table name as it is stored in the database
|
|
* @param columnNamePattern a column name pattern; must match the column
|
|
* name as it is stored in the database
|
|
* @return <code>ResultSet</code> - each row is a column description
|
|
* @exception SQLException if a database access error occurs
|
|
* @see #getSearchStringEscape
|
|
*/
|
|
ResultSet getColumns(String catalog, String schemaPattern,
|
|
String tableNamePattern, String columnNamePattern)
|
|
throws SQLException;
|
|
|
|
/**
|
|
* Indicates that the column might not allow <code>NULL</code> values.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>NULLABLE</code>
|
|
* in the <code>ResultSet</code> returned by the method
|
|
* <code>getColumns</code>.
|
|
*/
|
|
int columnNoNulls = 0;
|
|
|
|
/**
|
|
* Indicates that the column definitely allows <code>NULL</code> values.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>NULLABLE</code>
|
|
* in the <code>ResultSet</code> returned by the method
|
|
* <code>getColumns</code>.
|
|
*/
|
|
int columnNullable = 1;
|
|
|
|
/**
|
|
* Indicates that the nullability of columns is unknown.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>NULLABLE</code>
|
|
* in the <code>ResultSet</code> returned by the method
|
|
* <code>getColumns</code>.
|
|
*/
|
|
int columnNullableUnknown = 2;
|
|
|
|
/**
|
|
* Retrieves a description of the access rights for a table's columns.
|
|
*
|
|
* <P>Only privileges matching the column name criteria are
|
|
* returned. They are ordered by COLUMN_NAME and PRIVILEGE.
|
|
*
|
|
* <P>Each privilige description has the following columns:
|
|
* <OL>
|
|
* <LI><B>TABLE_CAT</B> String => table catalog (may be <code>null</code>)
|
|
* <LI><B>TABLE_SCHEM</B> String => table schema (may be <code>null</code>)
|
|
* <LI><B>TABLE_NAME</B> String => table name
|
|
* <LI><B>COLUMN_NAME</B> String => column name
|
|
* <LI><B>GRANTOR</B> String => grantor of access (may be <code>null</code>)
|
|
* <LI><B>GRANTEE</B> String => grantee of access
|
|
* <LI><B>PRIVILEGE</B> String => name of access (SELECT,
|
|
* INSERT, UPDATE, REFRENCES, ...)
|
|
* <LI><B>IS_GRANTABLE</B> String => "YES" if grantee is permitted
|
|
* to grant to others; "NO" if not; <code>null</code> if unknown
|
|
* </OL>
|
|
*
|
|
* @param catalog a catalog name; must match the catalog name as it
|
|
* is stored in the database; "" retrieves those without a catalog;
|
|
* <code>null</code> means that the catalog name should not be used to narrow
|
|
* the search
|
|
* @param schema a schema name; must match the schema name as it is
|
|
* stored in the database; "" retrieves those without a schema;
|
|
* <code>null</code> means that the schema name should not be used to narrow
|
|
* the search
|
|
* @param table a table name; must match the table name as it is
|
|
* stored in the database
|
|
* @param columnNamePattern a column name pattern; must match the column
|
|
* name as it is stored in the database
|
|
* @return <code>ResultSet</code> - each row is a column privilege description
|
|
* @exception SQLException if a database access error occurs
|
|
* @see #getSearchStringEscape
|
|
*/
|
|
ResultSet getColumnPrivileges(String catalog, String schema,
|
|
String table, String columnNamePattern) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves a description of the access rights for each table available
|
|
* in a catalog. Note that a table privilege applies to one or
|
|
* more columns in the table. It would be wrong to assume that
|
|
* this privilege applies to all columns (this may be true for
|
|
* some systems but is not true for all.)
|
|
*
|
|
* <P>Only privileges matching the schema and table name
|
|
* criteria are returned. They are ordered by
|
|
* <code>TABLE_CAT</code>,
|
|
* <code>TABLE_SCHEM</code>, <code>TABLE_NAME</code>,
|
|
* and <code>PRIVILEGE</code>.
|
|
*
|
|
* <P>Each privilige description has the following columns:
|
|
* <OL>
|
|
* <LI><B>TABLE_CAT</B> String => table catalog (may be <code>null</code>)
|
|
* <LI><B>TABLE_SCHEM</B> String => table schema (may be <code>null</code>)
|
|
* <LI><B>TABLE_NAME</B> String => table name
|
|
* <LI><B>GRANTOR</B> String => grantor of access (may be <code>null</code>)
|
|
* <LI><B>GRANTEE</B> String => grantee of access
|
|
* <LI><B>PRIVILEGE</B> String => name of access (SELECT,
|
|
* INSERT, UPDATE, REFRENCES, ...)
|
|
* <LI><B>IS_GRANTABLE</B> String => "YES" if grantee is permitted
|
|
* to grant to others; "NO" if not; <code>null</code> if unknown
|
|
* </OL>
|
|
*
|
|
* @param catalog a catalog name; must match the catalog name as it
|
|
* is stored in the database; "" retrieves those without a catalog;
|
|
* <code>null</code> means that the catalog name should not be used to narrow
|
|
* the search
|
|
* @param schemaPattern a schema name pattern; must match the schema name
|
|
* as it is stored in the database; "" retrieves those without a schema;
|
|
* <code>null</code> means that the schema name should not be used to narrow
|
|
* the search
|
|
* @param tableNamePattern a table name pattern; must match the
|
|
* table name as it is stored in the database
|
|
* @return <code>ResultSet</code> - each row is a table privilege description
|
|
* @exception SQLException if a database access error occurs
|
|
* @see #getSearchStringEscape
|
|
*/
|
|
ResultSet getTablePrivileges(String catalog, String schemaPattern,
|
|
String tableNamePattern) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves a description of a table's optimal set of columns that
|
|
* uniquely identifies a row. They are ordered by SCOPE.
|
|
*
|
|
* <P>Each column description has the following columns:
|
|
* <OL>
|
|
* <LI><B>SCOPE</B> short => actual scope of result
|
|
* <UL>
|
|
* <LI> bestRowTemporary - very temporary, while using row
|
|
* <LI> bestRowTransaction - valid for remainder of current transaction
|
|
* <LI> bestRowSession - valid for remainder of current session
|
|
* </UL>
|
|
* <LI><B>COLUMN_NAME</B> String => column name
|
|
* <LI><B>DATA_TYPE</B> int => SQL data type from java.sql.Types
|
|
* <LI><B>TYPE_NAME</B> String => Data source dependent type name,
|
|
* for a UDT the type name is fully qualified
|
|
* <LI><B>COLUMN_SIZE</B> int => precision
|
|
* <LI><B>BUFFER_LENGTH</B> int => not used
|
|
* <LI><B>DECIMAL_DIGITS</B> short => scale - Null is returned for data types where
|
|
* DECIMAL_DIGITS is not applicable.
|
|
* <LI><B>PSEUDO_COLUMN</B> short => is this a pseudo column
|
|
* like an Oracle ROWID
|
|
* <UL>
|
|
* <LI> bestRowUnknown - may or may not be pseudo column
|
|
* <LI> bestRowNotPseudo - is NOT a pseudo column
|
|
* <LI> bestRowPseudo - is a pseudo column
|
|
* </UL>
|
|
* </OL>
|
|
*
|
|
* <p>The COLUMN_SIZE column represents the specified column size for the given column.
|
|
* For numeric data, this is the maximum precision. For character data, this is the length in characters.
|
|
* For datetime datatypes, this is the length in characters of the String representation (assuming the
|
|
* maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype,
|
|
* this is the length in bytes. Null is returned for data types where the
|
|
* column size is not applicable.
|
|
*
|
|
* @param catalog a catalog name; must match the catalog name as it
|
|
* is stored in the database; "" retrieves those without a catalog;
|
|
* <code>null</code> means that the catalog name should not be used to narrow
|
|
* the search
|
|
* @param schema a schema name; must match the schema name
|
|
* as it is stored in the database; "" retrieves those without a schema;
|
|
* <code>null</code> means that the schema name should not be used to narrow
|
|
* the search
|
|
* @param table a table name; must match the table name as it is stored
|
|
* in the database
|
|
* @param scope the scope of interest; use same values as SCOPE
|
|
* @param nullable include columns that are nullable.
|
|
* @return <code>ResultSet</code> - each row is a column description
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
ResultSet getBestRowIdentifier(String catalog, String schema,
|
|
String table, int scope, boolean nullable) throws SQLException;
|
|
|
|
/**
|
|
* Indicates that the scope of the best row identifier is
|
|
* very temporary, lasting only while the
|
|
* row is being used.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>SCOPE</code>
|
|
* in the <code>ResultSet</code> object
|
|
* returned by the method <code>getBestRowIdentifier</code>.
|
|
*/
|
|
int bestRowTemporary = 0;
|
|
|
|
/**
|
|
* Indicates that the scope of the best row identifier is
|
|
* the remainder of the current transaction.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>SCOPE</code>
|
|
* in the <code>ResultSet</code> object
|
|
* returned by the method <code>getBestRowIdentifier</code>.
|
|
*/
|
|
int bestRowTransaction = 1;
|
|
|
|
/**
|
|
* Indicates that the scope of the best row identifier is
|
|
* the remainder of the current session.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>SCOPE</code>
|
|
* in the <code>ResultSet</code> object
|
|
* returned by the method <code>getBestRowIdentifier</code>.
|
|
*/
|
|
int bestRowSession = 2;
|
|
|
|
/**
|
|
* Indicates that the best row identifier may or may not be a pseudo column.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>PSEUDO_COLUMN</code>
|
|
* in the <code>ResultSet</code> object
|
|
* returned by the method <code>getBestRowIdentifier</code>.
|
|
*/
|
|
int bestRowUnknown = 0;
|
|
|
|
/**
|
|
* Indicates that the best row identifier is NOT a pseudo column.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>PSEUDO_COLUMN</code>
|
|
* in the <code>ResultSet</code> object
|
|
* returned by the method <code>getBestRowIdentifier</code>.
|
|
*/
|
|
int bestRowNotPseudo = 1;
|
|
|
|
/**
|
|
* Indicates that the best row identifier is a pseudo column.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>PSEUDO_COLUMN</code>
|
|
* in the <code>ResultSet</code> object
|
|
* returned by the method <code>getBestRowIdentifier</code>.
|
|
*/
|
|
int bestRowPseudo = 2;
|
|
|
|
/**
|
|
* Retrieves a description of a table's columns that are automatically
|
|
* updated when any value in a row is updated. They are
|
|
* unordered.
|
|
*
|
|
* <P>Each column description has the following columns:
|
|
* <OL>
|
|
* <LI><B>SCOPE</B> short => is not used
|
|
* <LI><B>COLUMN_NAME</B> String => column name
|
|
* <LI><B>DATA_TYPE</B> int => SQL data type from <code>java.sql.Types</code>
|
|
* <LI><B>TYPE_NAME</B> String => Data source-dependent type name
|
|
* <LI><B>COLUMN_SIZE</B> int => precision
|
|
* <LI><B>BUFFER_LENGTH</B> int => length of column value in bytes
|
|
* <LI><B>DECIMAL_DIGITS</B> short => scale - Null is returned for data types where
|
|
* DECIMAL_DIGITS is not applicable.
|
|
* <LI><B>PSEUDO_COLUMN</B> short => whether this is pseudo column
|
|
* like an Oracle ROWID
|
|
* <UL>
|
|
* <LI> versionColumnUnknown - may or may not be pseudo column
|
|
* <LI> versionColumnNotPseudo - is NOT a pseudo column
|
|
* <LI> versionColumnPseudo - is a pseudo column
|
|
* </UL>
|
|
* </OL>
|
|
*
|
|
* <p>The COLUMN_SIZE column represents the specified column size for the given column.
|
|
* For numeric data, this is the maximum precision. For character data, this is the length in characters.
|
|
* For datetime datatypes, this is the length in characters of the String representation (assuming the
|
|
* maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype,
|
|
* this is the length in bytes. Null is returned for data types where the
|
|
* column size is not applicable.
|
|
* @param catalog a catalog name; must match the catalog name as it
|
|
* is stored in the database; "" retrieves those without a catalog;
|
|
* <code>null</code> means that the catalog name should not be used to narrow
|
|
* the search
|
|
* @param schema a schema name; must match the schema name
|
|
* as it is stored in the database; "" retrieves those without a schema;
|
|
* <code>null</code> means that the schema name should not be used to narrow
|
|
* the search
|
|
* @param table a table name; must match the table name as it is stored
|
|
* in the database
|
|
* @return a <code>ResultSet</code> object in which each row is a
|
|
* column description
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
ResultSet getVersionColumns(String catalog, String schema,
|
|
String table) throws SQLException;
|
|
|
|
/**
|
|
* Indicates that this version column may or may not be a pseudo column.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>PSEUDO_COLUMN</code>
|
|
* in the <code>ResultSet</code> object
|
|
* returned by the method <code>getVersionColumns</code>.
|
|
*/
|
|
int versionColumnUnknown = 0;
|
|
|
|
/**
|
|
* Indicates that this version column is NOT a pseudo column.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>PSEUDO_COLUMN</code>
|
|
* in the <code>ResultSet</code> object
|
|
* returned by the method <code>getVersionColumns</code>.
|
|
*/
|
|
int versionColumnNotPseudo = 1;
|
|
|
|
/**
|
|
* Indicates that this version column is a pseudo column.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>PSEUDO_COLUMN</code>
|
|
* in the <code>ResultSet</code> object
|
|
* returned by the method <code>getVersionColumns</code>.
|
|
*/
|
|
int versionColumnPseudo = 2;
|
|
|
|
/**
|
|
* Retrieves a description of the given table's primary key columns. They
|
|
* are ordered by COLUMN_NAME.
|
|
*
|
|
* <P>Each primary key column description has the following columns:
|
|
* <OL>
|
|
* <LI><B>TABLE_CAT</B> String => table catalog (may be <code>null</code>)
|
|
* <LI><B>TABLE_SCHEM</B> String => table schema (may be <code>null</code>)
|
|
* <LI><B>TABLE_NAME</B> String => table name
|
|
* <LI><B>COLUMN_NAME</B> String => column name
|
|
* <LI><B>KEY_SEQ</B> short => sequence number within primary key( a value
|
|
* of 1 represents the first column of the primary key, a value of 2 would
|
|
* represent the second column within the primary key).
|
|
* <LI><B>PK_NAME</B> String => primary key name (may be <code>null</code>)
|
|
* </OL>
|
|
*
|
|
* @param catalog a catalog name; must match the catalog name as it
|
|
* is stored in the database; "" retrieves those without a catalog;
|
|
* <code>null</code> means that the catalog name should not be used to narrow
|
|
* the search
|
|
* @param schema a schema name; must match the schema name
|
|
* as it is stored in the database; "" retrieves those without a schema;
|
|
* <code>null</code> means that the schema name should not be used to narrow
|
|
* the search
|
|
* @param table a table name; must match the table name as it is stored
|
|
* in the database
|
|
* @return <code>ResultSet</code> - each row is a primary key column description
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
ResultSet getPrimaryKeys(String catalog, String schema,
|
|
String table) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves a description of the primary key columns that are
|
|
* referenced by the given table's foreign key columns (the primary keys
|
|
* imported by a table). They are ordered by PKTABLE_CAT,
|
|
* PKTABLE_SCHEM, PKTABLE_NAME, and KEY_SEQ.
|
|
*
|
|
* <P>Each primary key column description has the following columns:
|
|
* <OL>
|
|
* <LI><B>PKTABLE_CAT</B> String => primary key table catalog
|
|
* being imported (may be <code>null</code>)
|
|
* <LI><B>PKTABLE_SCHEM</B> String => primary key table schema
|
|
* being imported (may be <code>null</code>)
|
|
* <LI><B>PKTABLE_NAME</B> String => primary key table name
|
|
* being imported
|
|
* <LI><B>PKCOLUMN_NAME</B> String => primary key column name
|
|
* being imported
|
|
* <LI><B>FKTABLE_CAT</B> String => foreign key table catalog (may be <code>null</code>)
|
|
* <LI><B>FKTABLE_SCHEM</B> String => foreign key table schema (may be <code>null</code>)
|
|
* <LI><B>FKTABLE_NAME</B> String => foreign key table name
|
|
* <LI><B>FKCOLUMN_NAME</B> String => foreign key column name
|
|
* <LI><B>KEY_SEQ</B> short => sequence number within a foreign key( a value
|
|
* of 1 represents the first column of the foreign key, a value of 2 would
|
|
* represent the second column within the foreign key).
|
|
* <LI><B>UPDATE_RULE</B> short => What happens to a
|
|
* foreign key when the primary key is updated:
|
|
* <UL>
|
|
* <LI> importedNoAction - do not allow update of primary
|
|
* key if it has been imported
|
|
* <LI> importedKeyCascade - change imported key to agree
|
|
* with primary key update
|
|
* <LI> importedKeySetNull - change imported key to <code>NULL</code>
|
|
* if its primary key has been updated
|
|
* <LI> importedKeySetDefault - change imported key to default values
|
|
* if its primary key has been updated
|
|
* <LI> importedKeyRestrict - same as importedKeyNoAction
|
|
* (for ODBC 2.x compatibility)
|
|
* </UL>
|
|
* <LI><B>DELETE_RULE</B> short => What happens to
|
|
* the foreign key when primary is deleted.
|
|
* <UL>
|
|
* <LI> importedKeyNoAction - do not allow delete of primary
|
|
* key if it has been imported
|
|
* <LI> importedKeyCascade - delete rows that import a deleted key
|
|
* <LI> importedKeySetNull - change imported key to NULL if
|
|
* its primary key has been deleted
|
|
* <LI> importedKeyRestrict - same as importedKeyNoAction
|
|
* (for ODBC 2.x compatibility)
|
|
* <LI> importedKeySetDefault - change imported key to default if
|
|
* its primary key has been deleted
|
|
* </UL>
|
|
* <LI><B>FK_NAME</B> String => foreign key name (may be <code>null</code>)
|
|
* <LI><B>PK_NAME</B> String => primary key name (may be <code>null</code>)
|
|
* <LI><B>DEFERRABILITY</B> short => can the evaluation of foreign key
|
|
* constraints be deferred until commit
|
|
* <UL>
|
|
* <LI> importedKeyInitiallyDeferred - see SQL92 for definition
|
|
* <LI> importedKeyInitiallyImmediate - see SQL92 for definition
|
|
* <LI> importedKeyNotDeferrable - see SQL92 for definition
|
|
* </UL>
|
|
* </OL>
|
|
*
|
|
* @param catalog a catalog name; must match the catalog name as it
|
|
* is stored in the database; "" retrieves those without a catalog;
|
|
* <code>null</code> means that the catalog name should not be used to narrow
|
|
* the search
|
|
* @param schema a schema name; must match the schema name
|
|
* as it is stored in the database; "" retrieves those without a schema;
|
|
* <code>null</code> means that the schema name should not be used to narrow
|
|
* the search
|
|
* @param table a table name; must match the table name as it is stored
|
|
* in the database
|
|
* @return <code>ResultSet</code> - each row is a primary key column description
|
|
* @exception SQLException if a database access error occurs
|
|
* @see #getExportedKeys
|
|
*/
|
|
ResultSet getImportedKeys(String catalog, String schema,
|
|
String table) throws SQLException;
|
|
|
|
/**
|
|
* For the column <code>UPDATE_RULE</code>,
|
|
* indicates that
|
|
* when the primary key is updated, the foreign key (imported key)
|
|
* is changed to agree with it.
|
|
* For the column <code>DELETE_RULE</code>,
|
|
* it indicates that
|
|
* when the primary key is deleted, rows that imported that key
|
|
* are deleted.
|
|
* <P>
|
|
* A possible value for the columns <code>UPDATE_RULE</code>
|
|
* and <code>DELETE_RULE</code> in the
|
|
* <code>ResultSet</code> objects returned by the methods
|
|
* <code>getImportedKeys</code>, <code>getExportedKeys</code>,
|
|
* and <code>getCrossReference</code>.
|
|
*/
|
|
int importedKeyCascade = 0;
|
|
|
|
/**
|
|
* For the column <code>UPDATE_RULE</code>, indicates that
|
|
* a primary key may not be updated if it has been imported by
|
|
* another table as a foreign key.
|
|
* For the column <code>DELETE_RULE</code>, indicates that
|
|
* a primary key may not be deleted if it has been imported by
|
|
* another table as a foreign key.
|
|
* <P>
|
|
* A possible value for the columns <code>UPDATE_RULE</code>
|
|
* and <code>DELETE_RULE</code> in the
|
|
* <code>ResultSet</code> objects returned by the methods
|
|
* <code>getImportedKeys</code>, <code>getExportedKeys</code>,
|
|
* and <code>getCrossReference</code>.
|
|
*/
|
|
int importedKeyRestrict = 1;
|
|
|
|
/**
|
|
* For the columns <code>UPDATE_RULE</code>
|
|
* and <code>DELETE_RULE</code>, indicates that
|
|
* when the primary key is updated or deleted, the foreign key (imported key)
|
|
* is changed to <code>NULL</code>.
|
|
* <P>
|
|
* A possible value for the columns <code>UPDATE_RULE</code>
|
|
* and <code>DELETE_RULE</code> in the
|
|
* <code>ResultSet</code> objects returned by the methods
|
|
* <code>getImportedKeys</code>, <code>getExportedKeys</code>,
|
|
* and <code>getCrossReference</code>.
|
|
*/
|
|
int importedKeySetNull = 2;
|
|
|
|
/**
|
|
* For the columns <code>UPDATE_RULE</code>
|
|
* and <code>DELETE_RULE</code>, indicates that
|
|
* if the primary key has been imported, it cannot be updated or deleted.
|
|
* <P>
|
|
* A possible value for the columns <code>UPDATE_RULE</code>
|
|
* and <code>DELETE_RULE</code> in the
|
|
* <code>ResultSet</code> objects returned by the methods
|
|
* <code>getImportedKeys</code>, <code>getExportedKeys</code>,
|
|
* and <code>getCrossReference</code>.
|
|
*/
|
|
int importedKeyNoAction = 3;
|
|
|
|
/**
|
|
* For the columns <code>UPDATE_RULE</code>
|
|
* and <code>DELETE_RULE</code>, indicates that
|
|
* if the primary key is updated or deleted, the foreign key (imported key)
|
|
* is set to the default value.
|
|
* <P>
|
|
* A possible value for the columns <code>UPDATE_RULE</code>
|
|
* and <code>DELETE_RULE</code> in the
|
|
* <code>ResultSet</code> objects returned by the methods
|
|
* <code>getImportedKeys</code>, <code>getExportedKeys</code>,
|
|
* and <code>getCrossReference</code>.
|
|
*/
|
|
int importedKeySetDefault = 4;
|
|
|
|
/**
|
|
* Indicates deferrability. See SQL-92 for a definition.
|
|
* <P>
|
|
* A possible value for the column <code>DEFERRABILITY</code>
|
|
* in the <code>ResultSet</code> objects returned by the methods
|
|
* <code>getImportedKeys</code>, <code>getExportedKeys</code>,
|
|
* and <code>getCrossReference</code>.
|
|
*/
|
|
int importedKeyInitiallyDeferred = 5;
|
|
|
|
/**
|
|
* Indicates deferrability. See SQL-92 for a definition.
|
|
* <P>
|
|
* A possible value for the column <code>DEFERRABILITY</code>
|
|
* in the <code>ResultSet</code> objects returned by the methods
|
|
* <code>getImportedKeys</code>, <code>getExportedKeys</code>,
|
|
* and <code>getCrossReference</code>.
|
|
*/
|
|
int importedKeyInitiallyImmediate = 6;
|
|
|
|
/**
|
|
* Indicates deferrability. See SQL-92 for a definition.
|
|
* <P>
|
|
* A possible value for the column <code>DEFERRABILITY</code>
|
|
* in the <code>ResultSet</code> objects returned by the methods
|
|
* <code>getImportedKeys</code>, <code>getExportedKeys</code>,
|
|
* and <code>getCrossReference</code>.
|
|
*/
|
|
int importedKeyNotDeferrable = 7;
|
|
|
|
/**
|
|
* Retrieves a description of the foreign key columns that reference the
|
|
* given table's primary key columns (the foreign keys exported by a
|
|
* table). They are ordered by FKTABLE_CAT, FKTABLE_SCHEM,
|
|
* FKTABLE_NAME, and KEY_SEQ.
|
|
*
|
|
* <P>Each foreign key column description has the following columns:
|
|
* <OL>
|
|
* <LI><B>PKTABLE_CAT</B> String => primary key table catalog (may be <code>null</code>)
|
|
* <LI><B>PKTABLE_SCHEM</B> String => primary key table schema (may be <code>null</code>)
|
|
* <LI><B>PKTABLE_NAME</B> String => primary key table name
|
|
* <LI><B>PKCOLUMN_NAME</B> String => primary key column name
|
|
* <LI><B>FKTABLE_CAT</B> String => foreign key table catalog (may be <code>null</code>)
|
|
* being exported (may be <code>null</code>)
|
|
* <LI><B>FKTABLE_SCHEM</B> String => foreign key table schema (may be <code>null</code>)
|
|
* being exported (may be <code>null</code>)
|
|
* <LI><B>FKTABLE_NAME</B> String => foreign key table name
|
|
* being exported
|
|
* <LI><B>FKCOLUMN_NAME</B> String => foreign key column name
|
|
* being exported
|
|
* <LI><B>KEY_SEQ</B> short => sequence number within foreign key( a value
|
|
* of 1 represents the first column of the foreign key, a value of 2 would
|
|
* represent the second column within the foreign key).
|
|
* <LI><B>UPDATE_RULE</B> short => What happens to
|
|
* foreign key when primary is updated:
|
|
* <UL>
|
|
* <LI> importedNoAction - do not allow update of primary
|
|
* key if it has been imported
|
|
* <LI> importedKeyCascade - change imported key to agree
|
|
* with primary key update
|
|
* <LI> importedKeySetNull - change imported key to <code>NULL</code> if
|
|
* its primary key has been updated
|
|
* <LI> importedKeySetDefault - change imported key to default values
|
|
* if its primary key has been updated
|
|
* <LI> importedKeyRestrict - same as importedKeyNoAction
|
|
* (for ODBC 2.x compatibility)
|
|
* </UL>
|
|
* <LI><B>DELETE_RULE</B> short => What happens to
|
|
* the foreign key when primary is deleted.
|
|
* <UL>
|
|
* <LI> importedKeyNoAction - do not allow delete of primary
|
|
* key if it has been imported
|
|
* <LI> importedKeyCascade - delete rows that import a deleted key
|
|
* <LI> importedKeySetNull - change imported key to <code>NULL</code> if
|
|
* its primary key has been deleted
|
|
* <LI> importedKeyRestrict - same as importedKeyNoAction
|
|
* (for ODBC 2.x compatibility)
|
|
* <LI> importedKeySetDefault - change imported key to default if
|
|
* its primary key has been deleted
|
|
* </UL>
|
|
* <LI><B>FK_NAME</B> String => foreign key name (may be <code>null</code>)
|
|
* <LI><B>PK_NAME</B> String => primary key name (may be <code>null</code>)
|
|
* <LI><B>DEFERRABILITY</B> short => can the evaluation of foreign key
|
|
* constraints be deferred until commit
|
|
* <UL>
|
|
* <LI> importedKeyInitiallyDeferred - see SQL92 for definition
|
|
* <LI> importedKeyInitiallyImmediate - see SQL92 for definition
|
|
* <LI> importedKeyNotDeferrable - see SQL92 for definition
|
|
* </UL>
|
|
* </OL>
|
|
*
|
|
* @param catalog a catalog name; must match the catalog name as it
|
|
* is stored in this database; "" retrieves those without a catalog;
|
|
* <code>null</code> means that the catalog name should not be used to narrow
|
|
* the search
|
|
* @param schema a schema name; must match the schema name
|
|
* as it is stored in the database; "" retrieves those without a schema;
|
|
* <code>null</code> means that the schema name should not be used to narrow
|
|
* the search
|
|
* @param table a table name; must match the table name as it is stored
|
|
* in this database
|
|
* @return a <code>ResultSet</code> object in which each row is a
|
|
* foreign key column description
|
|
* @exception SQLException if a database access error occurs
|
|
* @see #getImportedKeys
|
|
*/
|
|
ResultSet getExportedKeys(String catalog, String schema,
|
|
String table) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves a description of the foreign key columns in the given foreign key
|
|
* table that reference the primary key or the columns representing a unique constraint of the parent table (could be the same or a different table).
|
|
* The number of columns returned from the parent table must match the number of
|
|
* columns that make up the foreign key. They
|
|
* are ordered by FKTABLE_CAT, FKTABLE_SCHEM, FKTABLE_NAME, and
|
|
* KEY_SEQ.
|
|
*
|
|
* <P>Each foreign key column description has the following columns:
|
|
* <OL>
|
|
* <LI><B>PKTABLE_CAT</B> String => parent key table catalog (may be <code>null</code>)
|
|
* <LI><B>PKTABLE_SCHEM</B> String => parent key table schema (may be <code>null</code>)
|
|
* <LI><B>PKTABLE_NAME</B> String => parent key table name
|
|
* <LI><B>PKCOLUMN_NAME</B> String => parent key column name
|
|
* <LI><B>FKTABLE_CAT</B> String => foreign key table catalog (may be <code>null</code>)
|
|
* being exported (may be <code>null</code>)
|
|
* <LI><B>FKTABLE_SCHEM</B> String => foreign key table schema (may be <code>null</code>)
|
|
* being exported (may be <code>null</code>)
|
|
* <LI><B>FKTABLE_NAME</B> String => foreign key table name
|
|
* being exported
|
|
* <LI><B>FKCOLUMN_NAME</B> String => foreign key column name
|
|
* being exported
|
|
* <LI><B>KEY_SEQ</B> short => sequence number within foreign key( a value
|
|
* of 1 represents the first column of the foreign key, a value of 2 would
|
|
* represent the second column within the foreign key).
|
|
* <LI><B>UPDATE_RULE</B> short => What happens to
|
|
* foreign key when parent key is updated:
|
|
* <UL>
|
|
* <LI> importedNoAction - do not allow update of parent
|
|
* key if it has been imported
|
|
* <LI> importedKeyCascade - change imported key to agree
|
|
* with parent key update
|
|
* <LI> importedKeySetNull - change imported key to <code>NULL</code> if
|
|
* its parent key has been updated
|
|
* <LI> importedKeySetDefault - change imported key to default values
|
|
* if its parent key has been updated
|
|
* <LI> importedKeyRestrict - same as importedKeyNoAction
|
|
* (for ODBC 2.x compatibility)
|
|
* </UL>
|
|
* <LI><B>DELETE_RULE</B> short => What happens to
|
|
* the foreign key when parent key is deleted.
|
|
* <UL>
|
|
* <LI> importedKeyNoAction - do not allow delete of parent
|
|
* key if it has been imported
|
|
* <LI> importedKeyCascade - delete rows that import a deleted key
|
|
* <LI> importedKeySetNull - change imported key to <code>NULL</code> if
|
|
* its primary key has been deleted
|
|
* <LI> importedKeyRestrict - same as importedKeyNoAction
|
|
* (for ODBC 2.x compatibility)
|
|
* <LI> importedKeySetDefault - change imported key to default if
|
|
* its parent key has been deleted
|
|
* </UL>
|
|
* <LI><B>FK_NAME</B> String => foreign key name (may be <code>null</code>)
|
|
* <LI><B>PK_NAME</B> String => parent key name (may be <code>null</code>)
|
|
* <LI><B>DEFERRABILITY</B> short => can the evaluation of foreign key
|
|
* constraints be deferred until commit
|
|
* <UL>
|
|
* <LI> importedKeyInitiallyDeferred - see SQL92 for definition
|
|
* <LI> importedKeyInitiallyImmediate - see SQL92 for definition
|
|
* <LI> importedKeyNotDeferrable - see SQL92 for definition
|
|
* </UL>
|
|
* </OL>
|
|
*
|
|
* @param parentCatalog a catalog name; must match the catalog name
|
|
* as it is stored in the database; "" retrieves those without a
|
|
* catalog; <code>null</code> means drop catalog name from the selection criteria
|
|
* @param parentSchema a schema name; must match the schema name as
|
|
* it is stored in the database; "" retrieves those without a schema;
|
|
* <code>null</code> means drop schema name from the selection criteria
|
|
* @param parentTable the name of the table that exports the key; must match
|
|
* the table name as it is stored in the database
|
|
* @param foreignCatalog a catalog name; must match the catalog name as
|
|
* it is stored in the database; "" retrieves those without a
|
|
* catalog; <code>null</code> means drop catalog name from the selection criteria
|
|
* @param foreignSchema a schema name; must match the schema name as it
|
|
* is stored in the database; "" retrieves those without a schema;
|
|
* <code>null</code> means drop schema name from the selection criteria
|
|
* @param foreignTable the name of the table that imports the key; must match
|
|
* the table name as it is stored in the database
|
|
* @return <code>ResultSet</code> - each row is a foreign key column description
|
|
* @exception SQLException if a database access error occurs
|
|
* @see #getImportedKeys
|
|
*/
|
|
ResultSet getCrossReference(
|
|
String parentCatalog, String parentSchema, String parentTable,
|
|
String foreignCatalog, String foreignSchema, String foreignTable
|
|
) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves a description of all the data types supported by
|
|
* this database. They are ordered by DATA_TYPE and then by how
|
|
* closely the data type maps to the corresponding JDBC SQL type.
|
|
*
|
|
* <P>If the database supports SQL distinct types, then getTypeInfo() will return
|
|
* a single row with a TYPE_NAME of DISTINCT and a DATA_TYPE of Types.DISTINCT.
|
|
* If the database supports SQL structured types, then getTypeInfo() will return
|
|
* a single row with a TYPE_NAME of STRUCT and a DATA_TYPE of Types.STRUCT.
|
|
*
|
|
* <P>If SQL distinct or structured types are supported, then information on the
|
|
* individual types may be obtained from the getUDTs() method.
|
|
*
|
|
|
|
*
|
|
* <P>Each type description has the following columns:
|
|
* <OL>
|
|
* <LI><B>TYPE_NAME</B> String => Type name
|
|
* <LI><B>DATA_TYPE</B> int => SQL data type from java.sql.Types
|
|
* <LI><B>PRECISION</B> int => maximum precision
|
|
* <LI><B>LITERAL_PREFIX</B> String => prefix used to quote a literal
|
|
* (may be <code>null</code>)
|
|
* <LI><B>LITERAL_SUFFIX</B> String => suffix used to quote a literal
|
|
(may be <code>null</code>)
|
|
* <LI><B>CREATE_PARAMS</B> String => parameters used in creating
|
|
* the type (may be <code>null</code>)
|
|
* <LI><B>NULLABLE</B> short => can you use NULL for this type.
|
|
* <UL>
|
|
* <LI> typeNoNulls - does not allow NULL values
|
|
* <LI> typeNullable - allows NULL values
|
|
* <LI> typeNullableUnknown - nullability unknown
|
|
* </UL>
|
|
* <LI><B>CASE_SENSITIVE</B> boolean=> is it case sensitive.
|
|
* <LI><B>SEARCHABLE</B> short => can you use "WHERE" based on this type:
|
|
* <UL>
|
|
* <LI> typePredNone - No support
|
|
* <LI> typePredChar - Only supported with WHERE .. LIKE
|
|
* <LI> typePredBasic - Supported except for WHERE .. LIKE
|
|
* <LI> typeSearchable - Supported for all WHERE ..
|
|
* </UL>
|
|
* <LI><B>UNSIGNED_ATTRIBUTE</B> boolean => is it unsigned.
|
|
* <LI><B>FIXED_PREC_SCALE</B> boolean => can it be a money value.
|
|
* <LI><B>AUTO_INCREMENT</B> boolean => can it be used for an
|
|
* auto-increment value.
|
|
* <LI><B>LOCAL_TYPE_NAME</B> String => localized version of type name
|
|
* (may be <code>null</code>)
|
|
* <LI><B>MINIMUM_SCALE</B> short => minimum scale supported
|
|
* <LI><B>MAXIMUM_SCALE</B> short => maximum scale supported
|
|
* <LI><B>SQL_DATA_TYPE</B> int => unused
|
|
* <LI><B>SQL_DATETIME_SUB</B> int => unused
|
|
* <LI><B>NUM_PREC_RADIX</B> int => usually 2 or 10
|
|
* </OL>
|
|
*
|
|
* <p>The PRECISION column represents the maximum column size that the server supports for the given datatype.
|
|
* For numeric data, this is the maximum precision. For character data, this is the length in characters.
|
|
* For datetime datatypes, this is the length in characters of the String representation (assuming the
|
|
* maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype,
|
|
* this is the length in bytes. Null is returned for data types where the
|
|
* column size is not applicable.
|
|
*
|
|
* @return a <code>ResultSet</code> object in which each row is an SQL
|
|
* type description
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
ResultSet getTypeInfo() throws SQLException;
|
|
|
|
/**
|
|
* Indicates that a <code>NULL</code> value is NOT allowed for this
|
|
* data type.
|
|
* <P>
|
|
* A possible value for column <code>NULLABLE</code> in the
|
|
* <code>ResultSet</code> object returned by the method
|
|
* <code>getTypeInfo</code>.
|
|
*/
|
|
int typeNoNulls = 0;
|
|
|
|
/**
|
|
* Indicates that a <code>NULL</code> value is allowed for this
|
|
* data type.
|
|
* <P>
|
|
* A possible value for column <code>NULLABLE</code> in the
|
|
* <code>ResultSet</code> object returned by the method
|
|
* <code>getTypeInfo</code>.
|
|
*/
|
|
int typeNullable = 1;
|
|
|
|
/**
|
|
* Indicates that it is not known whether a <code>NULL</code> value
|
|
* is allowed for this data type.
|
|
* <P>
|
|
* A possible value for column <code>NULLABLE</code> in the
|
|
* <code>ResultSet</code> object returned by the method
|
|
* <code>getTypeInfo</code>.
|
|
*/
|
|
int typeNullableUnknown = 2;
|
|
|
|
/**
|
|
* Indicates that <code>WHERE</code> search clauses are not supported
|
|
* for this type.
|
|
* <P>
|
|
* A possible value for column <code>SEARCHABLE</code> in the
|
|
* <code>ResultSet</code> object returned by the method
|
|
* <code>getTypeInfo</code>.
|
|
*/
|
|
int typePredNone = 0;
|
|
|
|
/**
|
|
* Indicates that the data type
|
|
* can be only be used in <code>WHERE</code> search clauses
|
|
* that use <code>LIKE</code> predicates.
|
|
* <P>
|
|
* A possible value for column <code>SEARCHABLE</code> in the
|
|
* <code>ResultSet</code> object returned by the method
|
|
* <code>getTypeInfo</code>.
|
|
*/
|
|
int typePredChar = 1;
|
|
|
|
/**
|
|
* Indicates that the data type can be only be used in <code>WHERE</code>
|
|
* search clauses
|
|
* that do not use <code>LIKE</code> predicates.
|
|
* <P>
|
|
* A possible value for column <code>SEARCHABLE</code> in the
|
|
* <code>ResultSet</code> object returned by the method
|
|
* <code>getTypeInfo</code>.
|
|
*/
|
|
int typePredBasic = 2;
|
|
|
|
/**
|
|
* Indicates that all <code>WHERE</code> search clauses can be
|
|
* based on this type.
|
|
* <P>
|
|
* A possible value for column <code>SEARCHABLE</code> in the
|
|
* <code>ResultSet</code> object returned by the method
|
|
* <code>getTypeInfo</code>.
|
|
*/
|
|
int typeSearchable = 3;
|
|
|
|
/**
|
|
* Retrieves a description of the given table's indices and statistics. They are
|
|
* ordered by NON_UNIQUE, TYPE, INDEX_NAME, and ORDINAL_POSITION.
|
|
*
|
|
* <P>Each index column description has the following columns:
|
|
* <OL>
|
|
* <LI><B>TABLE_CAT</B> String => table catalog (may be <code>null</code>)
|
|
* <LI><B>TABLE_SCHEM</B> String => table schema (may be <code>null</code>)
|
|
* <LI><B>TABLE_NAME</B> String => table name
|
|
* <LI><B>NON_UNIQUE</B> boolean => Can index values be non-unique.
|
|
* false when TYPE is tableIndexStatistic
|
|
* <LI><B>INDEX_QUALIFIER</B> String => index catalog (may be <code>null</code>);
|
|
* <code>null</code> when TYPE is tableIndexStatistic
|
|
* <LI><B>INDEX_NAME</B> String => index name; <code>null</code> when TYPE is
|
|
* tableIndexStatistic
|
|
* <LI><B>TYPE</B> short => index type:
|
|
* <UL>
|
|
* <LI> tableIndexStatistic - this identifies table statistics that are
|
|
* returned in conjuction with a table's index descriptions
|
|
* <LI> tableIndexClustered - this is a clustered index
|
|
* <LI> tableIndexHashed - this is a hashed index
|
|
* <LI> tableIndexOther - this is some other style of index
|
|
* </UL>
|
|
* <LI><B>ORDINAL_POSITION</B> short => column sequence number
|
|
* within index; zero when TYPE is tableIndexStatistic
|
|
* <LI><B>COLUMN_NAME</B> String => column name; <code>null</code> when TYPE is
|
|
* tableIndexStatistic
|
|
* <LI><B>ASC_OR_DESC</B> String => column sort sequence, "A" => ascending,
|
|
* "D" => descending, may be <code>null</code> if sort sequence is not supported;
|
|
* <code>null</code> when TYPE is tableIndexStatistic
|
|
* <LI><B>CARDINALITY</B> int => When TYPE is tableIndexStatistic, then
|
|
* this is the number of rows in the table; otherwise, it is the
|
|
* number of unique values in the index.
|
|
* <LI><B>PAGES</B> int => When TYPE is tableIndexStatisic then
|
|
* this is the number of pages used for the table, otherwise it
|
|
* is the number of pages used for the current index.
|
|
* <LI><B>FILTER_CONDITION</B> String => Filter condition, if any.
|
|
* (may be <code>null</code>)
|
|
* </OL>
|
|
*
|
|
* @param catalog a catalog name; must match the catalog name as it
|
|
* is stored in this database; "" retrieves those without a catalog;
|
|
* <code>null</code> means that the catalog name should not be used to narrow
|
|
* the search
|
|
* @param schema a schema name; must match the schema name
|
|
* as it is stored in this database; "" retrieves those without a schema;
|
|
* <code>null</code> means that the schema name should not be used to narrow
|
|
* the search
|
|
* @param table a table name; must match the table name as it is stored
|
|
* in this database
|
|
* @param unique when true, return only indices for unique values;
|
|
* when false, return indices regardless of whether unique or not
|
|
* @param approximate when true, result is allowed to reflect approximate
|
|
* or out of data values; when false, results are requested to be
|
|
* accurate
|
|
* @return <code>ResultSet</code> - each row is an index column description
|
|
* @exception SQLException if a database access error occurs
|
|
*/
|
|
ResultSet getIndexInfo(String catalog, String schema, String table,
|
|
boolean unique, boolean approximate)
|
|
throws SQLException;
|
|
|
|
/**
|
|
* Indicates that this column contains table statistics that
|
|
* are returned in conjunction with a table's index descriptions.
|
|
* <P>
|
|
* A possible value for column <code>TYPE</code> in the
|
|
* <code>ResultSet</code> object returned by the method
|
|
* <code>getIndexInfo</code>.
|
|
*/
|
|
short tableIndexStatistic = 0;
|
|
|
|
/**
|
|
* Indicates that this table index is a clustered index.
|
|
* <P>
|
|
* A possible value for column <code>TYPE</code> in the
|
|
* <code>ResultSet</code> object returned by the method
|
|
* <code>getIndexInfo</code>.
|
|
*/
|
|
short tableIndexClustered = 1;
|
|
|
|
/**
|
|
* Indicates that this table index is a hashed index.
|
|
* <P>
|
|
* A possible value for column <code>TYPE</code> in the
|
|
* <code>ResultSet</code> object returned by the method
|
|
* <code>getIndexInfo</code>.
|
|
*/
|
|
short tableIndexHashed = 2;
|
|
|
|
/**
|
|
* Indicates that this table index is not a clustered
|
|
* index, a hashed index, or table statistics;
|
|
* it is something other than these.
|
|
* <P>
|
|
* A possible value for column <code>TYPE</code> in the
|
|
* <code>ResultSet</code> object returned by the method
|
|
* <code>getIndexInfo</code>.
|
|
*/
|
|
short tableIndexOther = 3;
|
|
|
|
//--------------------------JDBC 2.0-----------------------------
|
|
|
|
/**
|
|
* Retrieves whether this database supports the given result set type.
|
|
*
|
|
* @param type defined in <code>java.sql.ResultSet</code>
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @see Connection
|
|
* @since 1.2
|
|
*/
|
|
boolean supportsResultSetType(int type) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports the given concurrency type
|
|
* in combination with the given result set type.
|
|
*
|
|
* @param type defined in <code>java.sql.ResultSet</code>
|
|
* @param concurrency type defined in <code>java.sql.ResultSet</code>
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @see Connection
|
|
* @since 1.2
|
|
*/
|
|
boolean supportsResultSetConcurrency(int type, int concurrency)
|
|
throws SQLException;
|
|
|
|
/**
|
|
*
|
|
* Retrieves whether for the given type of <code>ResultSet</code> object,
|
|
* the result set's own updates are visible.
|
|
*
|
|
* @param type the <code>ResultSet</code> type; one of
|
|
* <code>ResultSet.TYPE_FORWARD_ONLY</code>,
|
|
* <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
|
|
* <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
|
|
* @return <code>true</code> if updates are visible for the given result set type;
|
|
* <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.2
|
|
*/
|
|
boolean ownUpdatesAreVisible(int type) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether a result set's own deletes are visible.
|
|
*
|
|
* @param type the <code>ResultSet</code> type; one of
|
|
* <code>ResultSet.TYPE_FORWARD_ONLY</code>,
|
|
* <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
|
|
* <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
|
|
* @return <code>true</code> if deletes are visible for the given result set type;
|
|
* <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.2
|
|
*/
|
|
boolean ownDeletesAreVisible(int type) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether a result set's own inserts are visible.
|
|
*
|
|
* @param type the <code>ResultSet</code> type; one of
|
|
* <code>ResultSet.TYPE_FORWARD_ONLY</code>,
|
|
* <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
|
|
* <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
|
|
* @return <code>true</code> if inserts are visible for the given result set type;
|
|
* <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.2
|
|
*/
|
|
boolean ownInsertsAreVisible(int type) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether updates made by others are visible.
|
|
*
|
|
* @param type the <code>ResultSet</code> type; one of
|
|
* <code>ResultSet.TYPE_FORWARD_ONLY</code>,
|
|
* <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
|
|
* <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
|
|
* @return <code>true</code> if updates made by others
|
|
* are visible for the given result set type;
|
|
* <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.2
|
|
*/
|
|
boolean othersUpdatesAreVisible(int type) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether deletes made by others are visible.
|
|
*
|
|
* @param type the <code>ResultSet</code> type; one of
|
|
* <code>ResultSet.TYPE_FORWARD_ONLY</code>,
|
|
* <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
|
|
* <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
|
|
* @return <code>true</code> if deletes made by others
|
|
* are visible for the given result set type;
|
|
* <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.2
|
|
*/
|
|
boolean othersDeletesAreVisible(int type) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether inserts made by others are visible.
|
|
*
|
|
* @param type the <code>ResultSet</code> type; one of
|
|
* <code>ResultSet.TYPE_FORWARD_ONLY</code>,
|
|
* <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
|
|
* <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
|
|
* @return <code>true</code> if inserts made by others
|
|
* are visible for the given result set type;
|
|
* <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.2
|
|
*/
|
|
boolean othersInsertsAreVisible(int type) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether or not a visible row update can be detected by
|
|
* calling the method <code>ResultSet.rowUpdated</code>.
|
|
*
|
|
* @param type the <code>ResultSet</code> type; one of
|
|
* <code>ResultSet.TYPE_FORWARD_ONLY</code>,
|
|
* <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
|
|
* <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
|
|
* @return <code>true</code> if changes are detected by the result set type;
|
|
* <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.2
|
|
*/
|
|
boolean updatesAreDetected(int type) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether or not a visible row delete can be detected by
|
|
* calling the method <code>ResultSet.rowDeleted</code>. If the method
|
|
* <code>deletesAreDetected</code> returns <code>false</code>, it means that
|
|
* deleted rows are removed from the result set.
|
|
*
|
|
* @param type the <code>ResultSet</code> type; one of
|
|
* <code>ResultSet.TYPE_FORWARD_ONLY</code>,
|
|
* <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
|
|
* <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
|
|
* @return <code>true</code> if deletes are detected by the given result set type;
|
|
* <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.2
|
|
*/
|
|
boolean deletesAreDetected(int type) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether or not a visible row insert can be detected
|
|
* by calling the method <code>ResultSet.rowInserted</code>.
|
|
*
|
|
* @param type the <code>ResultSet</code> type; one of
|
|
* <code>ResultSet.TYPE_FORWARD_ONLY</code>,
|
|
* <code>ResultSet.TYPE_SCROLL_INSENSITIVE</code>, or
|
|
* <code>ResultSet.TYPE_SCROLL_SENSITIVE</code>
|
|
* @return <code>true</code> if changes are detected by the specified result
|
|
* set type; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.2
|
|
*/
|
|
boolean insertsAreDetected(int type) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports batch updates.
|
|
*
|
|
* @return <code>true</code> if this database supports batch upcates;
|
|
* <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.2
|
|
*/
|
|
boolean supportsBatchUpdates() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves a description of the user-defined types (UDTs) defined
|
|
* in a particular schema. Schema-specific UDTs may have type
|
|
* <code>JAVA_OBJECT</code>, <code>STRUCT</code>,
|
|
* or <code>DISTINCT</code>.
|
|
*
|
|
* <P>Only types matching the catalog, schema, type name and type
|
|
* criteria are returned. They are ordered by <code>DATA_TYPE</code>,
|
|
* <code>TYPE_CAT</code>, <code>TYPE_SCHEM</code> and
|
|
* <code>TYPE_NAME</code>. The type name parameter may be a fully-qualified
|
|
* name. In this case, the catalog and schemaPattern parameters are
|
|
* ignored.
|
|
*
|
|
* <P>Each type description has the following columns:
|
|
* <OL>
|
|
* <LI><B>TYPE_CAT</B> String => the type's catalog (may be <code>null</code>)
|
|
* <LI><B>TYPE_SCHEM</B> String => type's schema (may be <code>null</code>)
|
|
* <LI><B>TYPE_NAME</B> String => type name
|
|
* <LI><B>CLASS_NAME</B> String => Java class name
|
|
* <LI><B>DATA_TYPE</B> int => type value defined in java.sql.Types.
|
|
* One of JAVA_OBJECT, STRUCT, or DISTINCT
|
|
* <LI><B>REMARKS</B> String => explanatory comment on the type
|
|
* <LI><B>BASE_TYPE</B> short => type code of the source type of a
|
|
* DISTINCT type or the type that implements the user-generated
|
|
* reference type of the SELF_REFERENCING_COLUMN of a structured
|
|
* type as defined in java.sql.Types (<code>null</code> if DATA_TYPE is not
|
|
* DISTINCT or not STRUCT with REFERENCE_GENERATION = USER_DEFINED)
|
|
* </OL>
|
|
*
|
|
* <P><B>Note:</B> If the driver does not support UDTs, an empty
|
|
* result set is returned.
|
|
*
|
|
* @param catalog a catalog name; must match the catalog name as it
|
|
* is stored in the database; "" retrieves those without a catalog;
|
|
* <code>null</code> means that the catalog name should not be used to narrow
|
|
* the search
|
|
* @param schemaPattern a schema pattern name; must match the schema name
|
|
* as it is stored in the database; "" retrieves those without a schema;
|
|
* <code>null</code> means that the schema name should not be used to narrow
|
|
* the search
|
|
* @param typeNamePattern a type name pattern; must match the type name
|
|
* as it is stored in the database; may be a fully qualified name
|
|
* @param types a list of user-defined types (JAVA_OBJECT,
|
|
* STRUCT, or DISTINCT) to include; <code>null</code> returns all types
|
|
* @return <code>ResultSet</code> object in which each row describes a UDT
|
|
* @exception SQLException if a database access error occurs
|
|
* @see #getSearchStringEscape
|
|
* @since 1.2
|
|
*/
|
|
ResultSet getUDTs(String catalog, String schemaPattern,
|
|
String typeNamePattern, int[] types)
|
|
throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the connection that produced this metadata object.
|
|
* <P>
|
|
* @return the connection that produced this metadata object
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.2
|
|
*/
|
|
Connection getConnection() throws SQLException;
|
|
|
|
// ------------------- JDBC 3.0 -------------------------
|
|
|
|
/**
|
|
* Retrieves whether this database supports savepoints.
|
|
*
|
|
* @return <code>true</code> if savepoints are supported;
|
|
* <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.4
|
|
*/
|
|
boolean supportsSavepoints() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports named parameters to callable
|
|
* statements.
|
|
*
|
|
* @return <code>true</code> if named parameters are supported;
|
|
* <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.4
|
|
*/
|
|
boolean supportsNamedParameters() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether it is possible to have multiple <code>ResultSet</code> objects
|
|
* returned from a <code>CallableStatement</code> object
|
|
* simultaneously.
|
|
*
|
|
* @return <code>true</code> if a <code>CallableStatement</code> object
|
|
* can return multiple <code>ResultSet</code> objects
|
|
* simultaneously; <code>false</code> otherwise
|
|
* @exception SQLException if a datanase access error occurs
|
|
* @since 1.4
|
|
*/
|
|
boolean supportsMultipleOpenResults() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether auto-generated keys can be retrieved after
|
|
* a statement has been executed
|
|
*
|
|
* @return <code>true</code> if auto-generated keys can be retrieved
|
|
* after a statement has executed; <code>false</code> otherwise
|
|
*<p>If <code>true</code> is returned, the JDBC driver must support the
|
|
* returning of auto-generated keys for at least SQL INSERT statements
|
|
*<p>
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.4
|
|
*/
|
|
boolean supportsGetGeneratedKeys() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves a description of the user-defined type (UDT) hierarchies defined in a
|
|
* particular schema in this database. Only the immediate super type/
|
|
* sub type relationship is modeled.
|
|
* <P>
|
|
* Only supertype information for UDTs matching the catalog,
|
|
* schema, and type name is returned. The type name parameter
|
|
* may be a fully-qualified name. When the UDT name supplied is a
|
|
* fully-qualified name, the catalog and schemaPattern parameters are
|
|
* ignored.
|
|
* <P>
|
|
* If a UDT does not have a direct super type, it is not listed here.
|
|
* A row of the <code>ResultSet</code> object returned by this method
|
|
* describes the designated UDT and a direct supertype. A row has the following
|
|
* columns:
|
|
* <OL>
|
|
* <LI><B>TYPE_CAT</B> String => the UDT's catalog (may be <code>null</code>)
|
|
* <LI><B>TYPE_SCHEM</B> String => UDT's schema (may be <code>null</code>)
|
|
* <LI><B>TYPE_NAME</B> String => type name of the UDT
|
|
* <LI><B>SUPERTYPE_CAT</B> String => the direct super type's catalog
|
|
* (may be <code>null</code>)
|
|
* <LI><B>SUPERTYPE_SCHEM</B> String => the direct super type's schema
|
|
* (may be <code>null</code>)
|
|
* <LI><B>SUPERTYPE_NAME</B> String => the direct super type's name
|
|
* </OL>
|
|
*
|
|
* <P><B>Note:</B> If the driver does not support type hierarchies, an
|
|
* empty result set is returned.
|
|
*
|
|
* @param catalog a catalog name; "" retrieves those without a catalog;
|
|
* <code>null</code> means drop catalog name from the selection criteria
|
|
* @param schemaPattern a schema name pattern; "" retrieves those
|
|
* without a schema
|
|
* @param typeNamePattern a UDT name pattern; may be a fully-qualified
|
|
* name
|
|
* @return a <code>ResultSet</code> object in which a row gives information
|
|
* about the designated UDT
|
|
* @throws SQLException if a database access error occurs
|
|
* @see #getSearchStringEscape
|
|
* @since 1.4
|
|
*/
|
|
ResultSet getSuperTypes(String catalog, String schemaPattern,
|
|
String typeNamePattern) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves a description of the table hierarchies defined in a particular
|
|
* schema in this database.
|
|
*
|
|
* <P>Only supertable information for tables matching the catalog, schema
|
|
* and table name are returned. The table name parameter may be a fully-
|
|
* qualified name, in which case, the catalog and schemaPattern parameters
|
|
* are ignored. If a table does not have a super table, it is not listed here.
|
|
* Supertables have to be defined in the same catalog and schema as the
|
|
* sub tables. Therefore, the type description does not need to include
|
|
* this information for the supertable.
|
|
*
|
|
* <P>Each type description has the following columns:
|
|
* <OL>
|
|
* <LI><B>TABLE_CAT</B> String => the type's catalog (may be <code>null</code>)
|
|
* <LI><B>TABLE_SCHEM</B> String => type's schema (may be <code>null</code>)
|
|
* <LI><B>TABLE_NAME</B> String => type name
|
|
* <LI><B>SUPERTABLE_NAME</B> String => the direct super type's name
|
|
* </OL>
|
|
*
|
|
* <P><B>Note:</B> If the driver does not support type hierarchies, an
|
|
* empty result set is returned.
|
|
*
|
|
* @param catalog a catalog name; "" retrieves those without a catalog;
|
|
* <code>null</code> means drop catalog name from the selection criteria
|
|
* @param schemaPattern a schema name pattern; "" retrieves those
|
|
* without a schema
|
|
* @param tableNamePattern a table name pattern; may be a fully-qualified
|
|
* name
|
|
* @return a <code>ResultSet</code> object in which each row is a type description
|
|
* @throws SQLException if a database access error occurs
|
|
* @see #getSearchStringEscape
|
|
* @since 1.4
|
|
*/
|
|
ResultSet getSuperTables(String catalog, String schemaPattern,
|
|
String tableNamePattern) throws SQLException;
|
|
|
|
/**
|
|
* Indicates that <code>NULL</code> values might not be allowed.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>NULLABLE</code> in the <code>ResultSet</code> object
|
|
* returned by the method <code>getAttributes</code>.
|
|
*/
|
|
short attributeNoNulls = 0;
|
|
|
|
/**
|
|
* Indicates that <code>NULL</code> values are definitely allowed.
|
|
* <P>
|
|
* A possible value for the column <code>NULLABLE</code>
|
|
* in the <code>ResultSet</code> object
|
|
* returned by the method <code>getAttributes</code>.
|
|
*/
|
|
short attributeNullable = 1;
|
|
|
|
/**
|
|
* Indicates that whether <code>NULL</code> values are allowed is not
|
|
* known.
|
|
* <P>
|
|
* A possible value for the column <code>NULLABLE</code>
|
|
* in the <code>ResultSet</code> object
|
|
* returned by the method <code>getAttributes</code>.
|
|
*/
|
|
short attributeNullableUnknown = 2;
|
|
|
|
/**
|
|
* Retrieves a description of the given attribute of the given type
|
|
* for a user-defined type (UDT) that is available in the given schema
|
|
* and catalog.
|
|
* <P>
|
|
* Descriptions are returned only for attributes of UDTs matching the
|
|
* catalog, schema, type, and attribute name criteria. They are ordered by
|
|
* <code>TYPE_CAT</code>, <code>TYPE_SCHEM</code>,
|
|
* <code>TYPE_NAME</code> and <code>ORDINAL_POSITION</code>. This description
|
|
* does not contain inherited attributes.
|
|
* <P>
|
|
* The <code>ResultSet</code> object that is returned has the following
|
|
* columns:
|
|
* <OL>
|
|
* <LI><B>TYPE_CAT</B> String => type catalog (may be <code>null</code>)
|
|
* <LI><B>TYPE_SCHEM</B> String => type schema (may be <code>null</code>)
|
|
* <LI><B>TYPE_NAME</B> String => type name
|
|
* <LI><B>ATTR_NAME</B> String => attribute name
|
|
* <LI><B>DATA_TYPE</B> int => attribute type SQL type from java.sql.Types
|
|
* <LI><B>ATTR_TYPE_NAME</B> String => Data source dependent type name.
|
|
* For a UDT, the type name is fully qualified. For a REF, the type name is
|
|
* fully qualified and represents the target type of the reference type.
|
|
* <LI><B>ATTR_SIZE</B> int => column size. For char or date
|
|
* types this is the maximum number of characters; for numeric or
|
|
* decimal types this is precision.
|
|
* <LI><B>DECIMAL_DIGITS</B> int => the number of fractional digits. Null is returned for data types where
|
|
* DECIMAL_DIGITS is not applicable.
|
|
* <LI><B>NUM_PREC_RADIX</B> int => Radix (typically either 10 or 2)
|
|
* <LI><B>NULLABLE</B> int => whether NULL is allowed
|
|
* <UL>
|
|
* <LI> attributeNoNulls - might not allow NULL values
|
|
* <LI> attributeNullable - definitely allows NULL values
|
|
* <LI> attributeNullableUnknown - nullability unknown
|
|
* </UL>
|
|
* <LI><B>REMARKS</B> String => comment describing column (may be <code>null</code>)
|
|
* <LI><B>ATTR_DEF</B> String => default value (may be <code>null</code>)
|
|
* <LI><B>SQL_DATA_TYPE</B> int => unused
|
|
* <LI><B>SQL_DATETIME_SUB</B> int => unused
|
|
* <LI><B>CHAR_OCTET_LENGTH</B> int => for char types the
|
|
* maximum number of bytes in the column
|
|
* <LI><B>ORDINAL_POSITION</B> int => index of the attribute in the UDT
|
|
* (starting at 1)
|
|
* <LI><B>IS_NULLABLE</B> String => ISO rules are used to determine
|
|
* the nullability for a attribute.
|
|
* <UL>
|
|
* <LI> YES --- if the attribute can include NULLs
|
|
* <LI> NO --- if the attribute cannot include NULLs
|
|
* <LI> empty string --- if the nullability for the
|
|
* attribute is unknown
|
|
* </UL>
|
|
* <LI><B>SCOPE_CATALOG</B> String => catalog of table that is the
|
|
* scope of a reference attribute (<code>null</code> if DATA_TYPE isn't REF)
|
|
* <LI><B>SCOPE_SCHEMA</B> String => schema of table that is the
|
|
* scope of a reference attribute (<code>null</code> if DATA_TYPE isn't REF)
|
|
* <LI><B>SCOPE_TABLE</B> String => table name that is the scope of a
|
|
* reference attribute (<code>null</code> if the DATA_TYPE isn't REF)
|
|
* <LI><B>SOURCE_DATA_TYPE</B> short => source type of a distinct type or user-generated
|
|
* Ref type,SQL type from java.sql.Types (<code>null</code> if DATA_TYPE
|
|
* isn't DISTINCT or user-generated REF)
|
|
* </OL>
|
|
* @param catalog a catalog name; must match the catalog name as it
|
|
* is stored in the database; "" retrieves those without a catalog;
|
|
* <code>null</code> means that the catalog name should not be used to narrow
|
|
* the search
|
|
* @param schemaPattern a schema name pattern; must match the schema name
|
|
* as it is stored in the database; "" retrieves those without a schema;
|
|
* <code>null</code> means that the schema name should not be used to narrow
|
|
* the search
|
|
* @param typeNamePattern a type name pattern; must match the
|
|
* type name as it is stored in the database
|
|
* @param attributeNamePattern an attribute name pattern; must match the attribute
|
|
* name as it is declared in the database
|
|
* @return a <code>ResultSet</code> object in which each row is an
|
|
* attribute description
|
|
* @exception SQLException if a database access error occurs
|
|
* @see #getSearchStringEscape
|
|
* @since 1.4
|
|
*/
|
|
ResultSet getAttributes(String catalog, String schemaPattern,
|
|
String typeNamePattern, String attributeNamePattern)
|
|
throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports the given result set holdability.
|
|
*
|
|
* @param holdability one of the following constants:
|
|
* <code>ResultSet.HOLD_CURSORS_OVER_COMMIT</code> or
|
|
* <code>ResultSet.CLOSE_CURSORS_AT_COMMIT<code>
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @see Connection
|
|
* @since 1.4
|
|
*/
|
|
boolean supportsResultSetHoldability(int holdability) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves this database's default holdability for <code>ResultSet</code>
|
|
* objects.
|
|
*
|
|
* @return the default holdability; either
|
|
* <code>ResultSet.HOLD_CURSORS_OVER_COMMIT</code> or
|
|
* <code>ResultSet.CLOSE_CURSORS_AT_COMMIT</code>
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.4
|
|
*/
|
|
int getResultSetHoldability() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the major version number of the underlying database.
|
|
*
|
|
* @return the underlying database's major version
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.4
|
|
*/
|
|
int getDatabaseMajorVersion() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the minor version number of the underlying database.
|
|
*
|
|
* @return underlying database's minor version
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.4
|
|
*/
|
|
int getDatabaseMinorVersion() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the major JDBC version number for this
|
|
* driver.
|
|
*
|
|
* @return JDBC version major number
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.4
|
|
*/
|
|
int getJDBCMajorVersion() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the minor JDBC version number for this
|
|
* driver.
|
|
*
|
|
* @return JDBC version minor number
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.4
|
|
*/
|
|
int getJDBCMinorVersion() throws SQLException;
|
|
|
|
/**
|
|
* A possible return value for the method
|
|
* <code>DatabaseMetaData.getSQLStateType</code> which is used to indicate
|
|
* whether the value returned by the method
|
|
* <code>SQLException.getSQLState</code> is an
|
|
* X/Open (now know as Open Group) SQL CLI SQLSTATE value.
|
|
* <P>
|
|
* @since 1.4
|
|
*/
|
|
int sqlStateXOpen = 1;
|
|
|
|
/**
|
|
* A possible return value for the method
|
|
* <code>DatabaseMetaData.getSQLStateType</code> which is used to indicate
|
|
* whether the value returned by the method
|
|
* <code>SQLException.getSQLState</code> is an SQLSTATE value.
|
|
* <P>
|
|
* @since 1.6
|
|
*/
|
|
int sqlStateSQL = 2;
|
|
|
|
/**
|
|
* A possible return value for the method
|
|
* <code>DatabaseMetaData.getSQLStateType</code> which is used to indicate
|
|
* whether the value returned by the method
|
|
* <code>SQLException.getSQLState</code> is an SQL99 SQLSTATE value.
|
|
* <P>
|
|
* <b>Note:</b>This constant remains only for compatibility reasons. Developers
|
|
* should use the constant <code>sqlStateSQL</code> instead.
|
|
*
|
|
* @since 1.4
|
|
*/
|
|
int sqlStateSQL99 = sqlStateSQL;
|
|
|
|
/**
|
|
* Indicates whether the SQLSTATE returned by <code>SQLException.getSQLState</code>
|
|
* is X/Open (now known as Open Group) SQL CLI or SQL:2003.
|
|
* @return the type of SQLSTATE; one of:
|
|
* sqlStateXOpen or
|
|
* sqlStateSQL
|
|
* @throws SQLException if a database access error occurs
|
|
* @since 1.4
|
|
*/
|
|
int getSQLStateType() throws SQLException;
|
|
|
|
/**
|
|
* Indicates whether updates made to a LOB are made on a copy or directly
|
|
* to the LOB.
|
|
* @return <code>true</code> if updates are made to a copy of the LOB;
|
|
* <code>false</code> if updates are made directly to the LOB
|
|
* @throws SQLException if a database access error occurs
|
|
* @since 1.4
|
|
*/
|
|
boolean locatorsUpdateCopy() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports statement pooling.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @throws SQLException if a database access error occurs
|
|
* @since 1.4
|
|
*/
|
|
boolean supportsStatementPooling() throws SQLException;
|
|
|
|
//------------------------- JDBC 4.0 -----------------------------------
|
|
|
|
/**
|
|
* Indicates whether or not this data source supports the SQL <code>ROWID</code> type,
|
|
* and if so the lifetime for which a <code>RowId</code> object remains valid.
|
|
* <p>
|
|
* The returned int values have the following relationship:
|
|
* <pre>
|
|
* ROWID_UNSUPPORTED < ROWID_VALID_OTHER < ROWID_VALID_TRANSACTION
|
|
* < ROWID_VALID_SESSION < ROWID_VALID_FOREVER
|
|
* </pre>
|
|
* so conditional logic such as
|
|
* <pre>
|
|
* if (metadata.getRowIdLifetime() > DatabaseMetaData.ROWID_VALID_TRANSACTION)
|
|
* </pre>
|
|
* can be used. Valid Forever means valid across all Sessions, and valid for
|
|
* a Session means valid across all its contained Transactions.
|
|
*
|
|
* @return the status indicating the lifetime of a <code>RowId</code>
|
|
* @throws SQLException if a database access error occurs
|
|
* @since 1.6
|
|
*/
|
|
RowIdLifetime getRowIdLifetime() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves the schema names available in this database. The results
|
|
* are ordered by <code>TABLE_CATALOG</code> and
|
|
* <code>TABLE_SCHEM</code>.
|
|
*
|
|
* <P>The schema columns are:
|
|
* <OL>
|
|
* <LI><B>TABLE_SCHEM</B> String => schema name
|
|
* <LI><B>TABLE_CATALOG</B> String => catalog name (may be <code>null</code>)
|
|
* </OL>
|
|
*
|
|
*
|
|
* @param catalog a catalog name; must match the catalog name as it is stored
|
|
* in the database;"" retrieves those without a catalog; null means catalog
|
|
* name should not be used to narrow down the search.
|
|
* @param schemaPattern a schema name; must match the schema name as it is
|
|
* stored in the database; null means
|
|
* schema name should not be used to narrow down the search.
|
|
* @return a <code>ResultSet</code> object in which each row is a
|
|
* schema description
|
|
* @exception SQLException if a database access error occurs
|
|
* @see #getSearchStringEscape
|
|
* @since 1.6
|
|
*/
|
|
ResultSet getSchemas(String catalog, String schemaPattern) throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether this database supports invoking user-defined or vendor functions
|
|
* using the stored procedure escape syntax.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.6
|
|
*/
|
|
boolean supportsStoredFunctionsUsingCallSyntax() throws SQLException;
|
|
|
|
/**
|
|
* Retrieves whether a <code>SQLException</code> while autoCommit is <code>true</code> inidcates
|
|
* that all open ResultSets are closed, even ones that are holdable. When a <code>SQLException</code> occurs while
|
|
* autocommit is <code>true</code>, it is vendor specific whether the JDBC driver responds with a commit operation, a
|
|
* rollback operation, or by doing neither a commit nor a rollback. A potential result of this difference
|
|
* is in whether or not holdable ResultSets are closed.
|
|
*
|
|
* @return <code>true</code> if so; <code>false</code> otherwise
|
|
* @exception SQLException if a database access error occurs
|
|
* @since 1.6
|
|
*/
|
|
boolean autoCommitFailureClosesAllResultSets() throws SQLException;
|
|
/**
|
|
* Retrieves a list of the client info properties
|
|
* that the driver supports. The result set contains the following columns
|
|
* <p>
|
|
* <ol>
|
|
* <li><b>NAME</b> String=> The name of the client info property<br>
|
|
* <li><b>MAX_LEN</b> int=> The maximum length of the value for the property<br>
|
|
* <li><b>DEFAULT_VALUE</b> String=> The default value of the property<br>
|
|
* <li><b>DESCRIPTION</b> String=> A description of the property. This will typically
|
|
* contain information as to where this property is
|
|
* stored in the database.
|
|
* </ol>
|
|
* <p>
|
|
* The <code>ResultSet</code> is sorted by the NAME column
|
|
* <p>
|
|
* @return A <code>ResultSet</code> object; each row is a supported client info
|
|
* property
|
|
* <p>
|
|
* @exception SQLException if a database access error occurs
|
|
* <p>
|
|
* @since 1.6
|
|
*/
|
|
ResultSet getClientInfoProperties()
|
|
throws SQLException;
|
|
|
|
/**
|
|
* Retrieves a description of the system and user functions available
|
|
* in the given catalog.
|
|
* <P>
|
|
* Only system and user function descriptions matching the schema and
|
|
* function name criteria are returned. They are ordered by
|
|
* <code>FUNCTION_CAT</code>, <code>FUNCTION_SCHEM</code>,
|
|
* <code>FUNCTION_NAME</code> and
|
|
* <code>SPECIFIC_ NAME</code>.
|
|
*
|
|
* <P>Each function description has the the following columns:
|
|
* <OL>
|
|
* <LI><B>FUNCTION_CAT</B> String => function catalog (may be <code>null</code>)
|
|
* <LI><B>FUNCTION_SCHEM</B> String => function schema (may be <code>null</code>)
|
|
* <LI><B>FUNCTION_NAME</B> String => function name. This is the name
|
|
* used to invoke the function
|
|
* <LI><B>REMARKS</B> String => explanatory comment on the function
|
|
* <LI><B>FUNCTION_TYPE</B> short => kind of function:
|
|
* <UL>
|
|
* <LI>functionResultUnknown - Cannot determine if a return value
|
|
* or table will be returned
|
|
* <LI> functionNoTable- Does not return a table
|
|
* <LI> functionReturnsTable - Returns a table
|
|
* </UL>
|
|
* <LI><B>SPECIFIC_NAME</B> String => the name which uniquely identifies
|
|
* this function within its schema. This is a user specified, or DBMS
|
|
* generated, name that may be different then the <code>FUNCTION_NAME</code>
|
|
* for example with overload functions
|
|
* </OL>
|
|
* <p>
|
|
* A user may not have permission to execute any of the functions that are
|
|
* returned by <code>getFunctions</code>
|
|
*
|
|
* @param catalog a catalog name; must match the catalog name as it
|
|
* is stored in the database; "" retrieves those without a catalog;
|
|
* <code>null</code> means that the catalog name should not be used to narrow
|
|
* the search
|
|
* @param schemaPattern a schema name pattern; must match the schema name
|
|
* as it is stored in the database; "" retrieves those without a schema;
|
|
* <code>null</code> means that the schema name should not be used to narrow
|
|
* the search
|
|
* @param functionNamePattern a function name pattern; must match the
|
|
* function name as it is stored in the database
|
|
* @return <code>ResultSet</code> - each row is a function description
|
|
* @exception SQLException if a database access error occurs
|
|
* @see #getSearchStringEscape
|
|
* @since 1.6
|
|
*/
|
|
ResultSet getFunctions(String catalog, String schemaPattern,
|
|
String functionNamePattern) throws SQLException;
|
|
/**
|
|
* Retrieves a description of the given catalog's system or user
|
|
* function parameters and return type.
|
|
*
|
|
* <P>Only descriptions matching the schema, function and
|
|
* parameter name criteria are returned. They are ordered by
|
|
* <code>FUNCTION_CAT</code>, <code>FUNCTION_SCHEM</code>,
|
|
* <code>FUNCTION_NAME</code> and
|
|
* <code>SPECIFIC_ NAME</code>. Within this, the return value,
|
|
* if any, is first. Next are the parameter descriptions in call
|
|
* order. The column descriptions follow in column number order.
|
|
*
|
|
* <P>Each row in the <code>ResultSet</code>
|
|
* is a parameter description, column description or
|
|
* return type description with the following fields:
|
|
* <OL>
|
|
* <LI><B>FUNCTION_CAT</B> String => function catalog (may be <code>null</code>)
|
|
* <LI><B>FUNCTION_SCHEM</B> String => function schema (may be <code>null</code>)
|
|
* <LI><B>FUNCTION_NAME</B> String => function name. This is the name
|
|
* used to invoke the function
|
|
* <LI><B>COLUMN_NAME</B> String => column/parameter name
|
|
* <LI><B>COLUMN_TYPE</B> Short => kind of column/parameter:
|
|
* <UL>
|
|
* <LI> functionColumnUnknown - nobody knows
|
|
* <LI> functionColumnIn - IN parameter
|
|
* <LI> functionColumnInOut - INOUT parameter
|
|
* <LI> functionColumnOut - OUT parameter
|
|
* <LI> functionColumnReturn - function return value
|
|
* <LI> functionColumnResult - Indicates that the parameter or column
|
|
* is a column in the <code>ResultSet</code>
|
|
* </UL>
|
|
* <LI><B>DATA_TYPE</B> int => SQL type from java.sql.Types
|
|
* <LI><B>TYPE_NAME</B> String => SQL type name, for a UDT type the
|
|
* type name is fully qualified
|
|
* <LI><B>PRECISION</B> int => precision
|
|
* <LI><B>LENGTH</B> int => length in bytes of data
|
|
* <LI><B>SCALE</B> short => scale - null is returned for data types where
|
|
* SCALE is not applicable.
|
|
* <LI><B>RADIX</B> short => radix
|
|
* <LI><B>NULLABLE</B> short => can it contain NULL.
|
|
* <UL>
|
|
* <LI> functionNoNulls - does not allow NULL values
|
|
* <LI> functionNullable - allows NULL values
|
|
* <LI> functionNullableUnknown - nullability unknown
|
|
* </UL>
|
|
* <LI><B>REMARKS</B> String => comment describing column/parameter
|
|
* <LI><B>CHAR_OCTET_LENGTH</B> int => the maximum length of binary
|
|
* and character based parameters or columns. For any other datatype the returned value
|
|
* is a NULL
|
|
* <LI><B>ORDINAL_POSITION</B> int => the ordinal position, starting
|
|
* from 1, for the input and output parameters. A value of 0
|
|
* is returned if this row describes the function's return value.
|
|
* For result set columns, it is the
|
|
* ordinal position of the column in the result set starting from 1.
|
|
* <LI><B>IS_NULLABLE</B> String => ISO rules are used to determine
|
|
* the nullability for a parameter or column.
|
|
* <UL>
|
|
* <LI> YES --- if the parameter or column can include NULLs
|
|
* <LI> NO --- if the parameter or column cannot include NULLs
|
|
* <LI> empty string --- if the nullability for the
|
|
* parameter or column is unknown
|
|
* </UL>
|
|
* <LI><B>SPECIFIC_NAME</B> String => the name which uniquely identifies
|
|
* this function within its schema. This is a user specified, or DBMS
|
|
* generated, name that may be different then the <code>FUNCTION_NAME</code>
|
|
* for example with overload functions
|
|
* </OL>
|
|
*
|
|
* <p>The PRECISION column represents the specified column size for the given
|
|
* parameter or column.
|
|
* For numeric data, this is the maximum precision. For character data, this is the length in characters.
|
|
* For datetime datatypes, this is the length in characters of the String representation (assuming the
|
|
* maximum allowed precision of the fractional seconds component). For binary data, this is the length in bytes. For the ROWID datatype,
|
|
* this is the length in bytes. Null is returned for data types where the
|
|
* column size is not applicable.
|
|
* @param catalog a catalog name; must match the catalog name as it
|
|
* is stored in the database; "" retrieves those without a catalog;
|
|
* <code>null</code> means that the catalog name should not be used to narrow
|
|
* the search
|
|
* @param schemaPattern a schema name pattern; must match the schema name
|
|
* as it is stored in the database; "" retrieves those without a schema;
|
|
* <code>null</code> means that the schema name should not be used to narrow
|
|
* the search
|
|
* @param functionNamePattern a procedure name pattern; must match the
|
|
* function name as it is stored in the database
|
|
* @param columnNamePattern a parameter name pattern; must match the
|
|
* parameter or column name as it is stored in the database
|
|
* @return <code>ResultSet</code> - each row describes a
|
|
* user function parameter, column or return type
|
|
*
|
|
* @exception SQLException if a database access error occurs
|
|
* @see #getSearchStringEscape
|
|
* @since 1.6
|
|
*/
|
|
ResultSet getFunctionColumns(String catalog,
|
|
String schemaPattern,
|
|
String functionNamePattern,
|
|
String columnNamePattern) throws SQLException;
|
|
|
|
|
|
/**
|
|
* Indicates that type of the parameter or column is unknown.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>COLUMN_TYPE</code>
|
|
* in the <code>ResultSet</code>
|
|
* returned by the method <code>getFunctionColumns</code>.
|
|
*/
|
|
int functionColumnUnknown = 0;
|
|
|
|
/**
|
|
* Indicates that the parameter or column is an IN parameter.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>COLUMN_TYPE</code>
|
|
* in the <code>ResultSet</code>
|
|
* returned by the method <code>getFunctionColumns</code>.
|
|
* @since 1.6
|
|
*/
|
|
int functionColumnIn = 1;
|
|
|
|
/**
|
|
* Indicates that the parameter or column is an INOUT parameter.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>COLUMN_TYPE</code>
|
|
* in the <code>ResultSet</code>
|
|
* returned by the method <code>getFunctionColumns</code>.
|
|
* @since 1.6
|
|
*/
|
|
int functionColumnInOut = 2;
|
|
|
|
/**
|
|
* Indicates that the parameter or column is an OUT parameter.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>COLUMN_TYPE</code>
|
|
* in the <code>ResultSet</code>
|
|
* returned by the method <code>getFunctionColumns</code>.
|
|
* @since 1.6
|
|
*/
|
|
int functionColumnOut = 3;
|
|
/**
|
|
* Indicates that the parameter or column is a return value.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>COLUMN_TYPE</code>
|
|
* in the <code>ResultSet</code>
|
|
* returned by the method <code>getFunctionColumns</code>.
|
|
* @since 1.6
|
|
*/
|
|
int functionReturn = 4;
|
|
|
|
/**
|
|
* Indicates that the parameter or column is a column in a result set.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>COLUMN_TYPE</code>
|
|
* in the <code>ResultSet</code>
|
|
* returned by the method <code>getFunctionColumns</code>.
|
|
* @since 1.6
|
|
*/
|
|
int functionColumnResult = 5;
|
|
|
|
|
|
/**
|
|
* Indicates that <code>NULL</code> values are not allowed.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>NULLABLE</code>
|
|
* in the <code>ResultSet</code> object
|
|
* returned by the method <code>getFunctionColumns</code>.
|
|
* @since 1.6
|
|
*/
|
|
int functionNoNulls = 0;
|
|
|
|
/**
|
|
* Indicates that <code>NULL</code> values are allowed.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>NULLABLE</code>
|
|
* in the <code>ResultSet</code> object
|
|
* returned by the method <code>getFunctionColumns</code>.
|
|
* @since 1.6
|
|
*/
|
|
int functionNullable = 1;
|
|
|
|
/**
|
|
* Indicates that whether <code>NULL</code> values are allowed
|
|
* is unknown.
|
|
* <P>
|
|
* A possible value for the column
|
|
* <code>NULLABLE</code>
|
|
* in the <code>ResultSet</code> object
|
|
* returned by the method <code>getFunctionColumns</code>.
|
|
* @since 1.6
|
|
*/
|
|
int functionNullableUnknown = 2;
|
|
|
|
/**
|
|
* Indicates that it is not known whether the function returns
|
|
* a result or a table.
|
|
* <P>
|
|
* A possible value for column <code>FUNCTION_TYPE</code> in the
|
|
* <code>ResultSet</code> object returned by the method
|
|
* <code>getFunctions</code>.
|
|
* @since 1.6
|
|
*/
|
|
int functionResultUnknown = 0;
|
|
|
|
/**
|
|
* Indicates that the function does not return a table.
|
|
* <P>
|
|
* A possible value for column <code>FUNCTION_TYPE</code> in the
|
|
* <code>ResultSet</code> object returned by the method
|
|
* <code>getFunctions</code>.
|
|
* @since 1.6
|
|
*/
|
|
int functionNoTable = 1;
|
|
|
|
/**
|
|
* Indicates that the function returns a table.
|
|
* <P>
|
|
* A possible value for column <code>FUNCTION_TYPE</code> in the
|
|
* <code>ResultSet</code> object returned by the method
|
|
* <code>getFunctions</code>.
|
|
* @since 1.6
|
|
*/
|
|
int functionReturnsTable = 2;
|
|
|
|
// Android-removed: JDBC 4.1 methods were removed immediately after the initial import.
|
|
}
|