87 lines
5.2 KiB
HTML
87 lines
5.2 KiB
HTML
<?xml version="1.0" encoding="utf-8"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-us">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="dc.language" scheme="rfc1766" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<meta name="dc.date" scheme="iso8601" content="2005-09-19" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow"/>
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<meta name="keywords" content="description, SQLSTATE, SQLCODE" />
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<title>SQL return codes</title>
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<link rel="stylesheet" type="text/css" href="ibmidwb.css" />
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<link rel="stylesheet" type="text/css" href="ic.css" />
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</head>
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<body>
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<a id="Top_Of_Page" name="Top_Of_Page"></a><!-- Java sync-link -->
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<script language = "Javascript" src = "../rzahg/synch.js" type="text/javascript"></script>
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<a name="cksql"></a>
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<h2 id="cksql"><a href="rbafzmst02.htm#ToC_730">SQL return codes</a></h2>
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<p>The GET DIAGNOSTICS statement can be used in all languages to return return
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codes and other information about the previous SQL statement. For more information,
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see <a href="rbafzmstgetdiag.htm#getdiag">GET DIAGNOSTICS</a>.</p>
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<p>Additionally, each host language provides a mechanism for handling SQL
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return codes:</p>
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<ul>
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<li>In C, COBOL, FORTRAN, and PL/I, an application program containing executable
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SQL statements must provide at least one of the following:
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<ul>
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<li>A structure named SQLCA.</li>
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<li>A stand-alone CHAR(5) (CHAR(6) in C) variable named SQLSTATE (SQLSTA
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or SQLSTATE in FORTRAN).</li>
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<li>A stand-alone integer variable named SQLCODE (SQLCOD in FORTRAN).</li></ul>A stand-alone SQLSTATE or SQLCODE must not be declared in a host structure.
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Both a stand-alone SQLSTATE and SQLCODE may be provided.
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<p>An SQLCA can be
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obtained by using the INCLUDE SQLCA statement. If an SQLCA is provided, neither
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a stand-alone SQLSTATE or SQLCODE can be provided. The SQLCA includes a character-string
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variable named SQLSTATE (SQLSTT in FORTRAN) and an integer variable named
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SQLCODE (SQLCOD in FORTRAN) .</p>
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<p>A stand-alone SQLSTATE should be used
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to conform with the SQL 1999 Core standard.</p></li>
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<li>In Java™, for error conditions, the getSQLState method can be used to get
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the SQLSTATE and the getErrorCode method can be used to get the SQLCODE.</li>
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<li>In REXX and RPG, an SQLCA is provided automatically.</li></ul>
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<a name="wq1028"></a>
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<h3 id="wq1028"><a href="rbafzmst02.htm#ToC_731">SQLSTATE</a></h3><a id="idx1271" name="idx1271"></a>
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<p>Regardless of whether the application program provides an SQLCA or a stand-alone
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variable, SQLSTATE is also set by the database manager after execution of
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each SQL statement. Thus, application programs can check the execution of
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SQL statements by testing SQLSTATE instead of SQLCODE.</p>
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<p>SQLSTATE provides application programs with common codes for common error
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conditions. Furthermore, SQLSTATE is designed so that application programs
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can test for specific errors or classes of errors. The scheme is the same
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for all database managers and is based on the ISO/ANSI SQL 2003 Core standard. A complete
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list of SQLSTATE classes and SQLSTATEs associated with each SQLCODE is supplied
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in the <a href="../rzala/rzalakickoff.htm">SQL Messages and Codes</a> book in the iSeries Information Center.</p>
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<a name="wq1029"></a>
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<h3 id="wq1029"><a href="rbafzmst02.htm#ToC_732">SQLCODE</a></h3><a id="idx1272" name="idx1272"></a>
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<p>The SQLCODE is also set by the database manager after each SQL statement
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is executed as follows: </p>
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<ul>
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<li>If SQLCODE = 0 and SQLWARN0 is blank, execution was successful.</li>
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<li>If SQLCODE = 100, no data was found. For example, a FETCH statement returned
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no data, because the cursor was positioned after the last row of the result
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table.</li>
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<li>If SQLCODE > 0 and not = 100, execution was successful with a warning.</li>
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<li>If SQLCODE = 0 and SQLWARN0 = 'W', execution was successful with a warning.</li>
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<li>If SQLCODE < 0, execution was not successful.</li></ul>
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<p>A complete listing of DB2 UDB for iSeries SQLCODEs and their corresponding SQLSTATEs
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is provided in the <a href="../rzala/rzalakickoff.htm">SQL Messages and Codes</a> book in
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the iSeries Information Center.</p>
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<hr /><br />
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[ <a href="#Top_Of_Page">Top of Page</a> | <a href="rbafzmsthowsql.htm">Previous Page</a> | <a href="rbafzmstsqcomm.htm">Next Page</a> | <a href="rbafzmst02.htm#wq1">Contents</a> |
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<a href="rbafzmstindex.htm#index">Index</a> ]
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</body>
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