110 lines
5.2 KiB
HTML
110 lines
5.2 KiB
HTML
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<?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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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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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 http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="keywords" content="DECLARE STATEMENT statement, DECLARE STATEMENT,
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SQL statements, names for, for SQL statements, name, identifying by DECLARE,
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prepared SQL statement, in DECLARE STATEMENT statement, statement-name" />
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<title>DECLARE STATEMENT</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="dclst"></a>
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<h2 id="dclst"><a href="rbafzmst02.htm#ToC_995">DECLARE STATEMENT</a></h2><a id="idx2342" name="idx2342"></a><a id="idx2343" name="idx2343"></a><a id="idx2344" name="idx2344"></a><a id="idx2345" name="idx2345"></a><a id="idx2346" name="idx2346"></a>
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<a name="dclar"></a>
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<p id="dclar">The DECLARE STATEMENT statement is used for program documentation.
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It declares names that are used to identify prepared SQL statements.</p>
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<a name="wq1435"></a>
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<h3 id="wq1435"><a href="rbafzmst02.htm#ToC_996">Invocation</a></h3>
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<p>This statement can only be embedded in an application program. It is not
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an executable statement. This statement is not allowed in Java™ or
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REXX.</p>
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<a name="wq1436"></a>
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<h3 id="wq1436"><a href="rbafzmst02.htm#ToC_997">Authorization</a></h3>
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<p>None required.</p>
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<a name="wq1437"></a>
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<h3 id="wq1437"><a href="rbafzmst02.htm#ToC_998">Syntax</a></h3>
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<a href="rbafzmstdclst.htm#synsdstmt"><img src="c.gif" alt="Click to skip syntax diagram" /></a>
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<pre class="cgraphic"><span><img src="c.gif" alt="Read syntax diagram" longdesc="rbafzmstsyn324.htm"
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border="0" /></span><a href="#skipsyn-323"><img src="c.gif" alt="Skip visual syntax diagram"
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border="0" /></a> .-,--------------.
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V |
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>>-DECLARE----<span class="italic">statement-name</span>-+--STATEMENT----------------------><
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</pre>
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<a name="skipsyn-323" id="skipsyn-323"></a>
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<a name="synsdstmt"></a>
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<h3 id="synsdstmt"><a href="rbafzmst02.htm#ToC_999">Description</a></h3>
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<dl class="parml">
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<dt class="bold"><var class="pv">statement-name</var> </dt><a id="idx2347" name="idx2347"></a>
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<dd>Lists one or more names that are used in your program to identify prepared
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SQL statements.
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</dd>
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</dl>
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<a name="wq1438"></a>
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<h3 id="wq1438"><a href="rbafzmst02.htm#ToC_1000">Example</a></h3>
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<p>This example shows the use of the DECLARE STATEMENT statement in a C program. </p>
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<a name="refdst"></a>
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<pre id="refdst" class="xmp">EXEC SQL <span class="bold">INCLUDE SQLDA</span>;
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void main ()
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{
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EXEC SQL <span class="bold">BEGIN DECLARE SECTION</span> ;
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char src_stmt[32000];
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char sqlda[32000]
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EXEC SQL <span class="bold">END DECLARE SECTION</span> ;
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EXEC SQL INCLUDE SQLCA ;
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strcpy(src_stmt,"<span class="bold">SELECT</span> DEPTNO, DEPTNAME, MGRNO \
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<span class="bold">FROM</span> DEPARTMENT \
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<span class="bold">WHERE</span> ADMRDEPT = 'A00'");
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EXEC SQL <span class="bold">DECLARE</span> OBJ_STMT STATEMENT;
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(Allocate storage from SQLDA)
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EXEC SQL <span class="bold">DECLARE</span> C1 CURSOR <span class="bold">FOR</span> OBJ_STMT;
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EXEC SQL <span class="bold">PREPARE</span> OBJ_STMT <span class="bold">FROM</span> :src_stmt;
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EXEC SQL <span class="bold">DESCRIBE</span> OBJ_STMT <span class="bold">INTO</span> :sqlda;
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(Examine SQLDA) (Set SQLDATA pointer addresses)
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EXEC SQL <span class="bold">OPEN</span> C1;
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while (strncmp(SQLSTATE, "00000", 5) )
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{
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EXEC SQL <span class="bold">FETCH</span> C1 <span class="bold">USING</span> <span class="bold">DESCRIPTOR</span> :sqlda;
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(Print results)
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}
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EXEC SQL <span class="bold">CLOSE</span> C1;
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return;
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}
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</pre><a id="idx2348" name="idx2348"></a><a id="idx2349" name="idx2349"></a>
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<hr /><br />
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[ <a href="#Top_Of_Page">Top of Page</a> | <a href="rbafzmstdclpef.htm">Previous Page</a> | <a href="rbafzmstdeclvar.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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<a id="Bot_Of_Page" name="Bot_Of_Page"></a>
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</body>
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</html>
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