106 lines
7.2 KiB
HTML
106 lines
7.2 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE html
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PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<meta name="DC.Title" content="Embed SQL statements in ILE RPG applications that use SQL" />
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<meta name="abstract" content="SQL statements coded in an ILE RPG program must be placed in the calculation section." />
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<meta name="description" content="SQL statements coded in an ILE RPG program must be placed in the calculation section." />
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<meta name="keywords" content="embedded SQL, ILE RPG" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>Embed SQL statements in ILE RPG applications that use
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SQL</title>
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</head>
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<body id="rzajpembedirpg"><a name="rzajpembedirpg"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Embed SQL statements in ILE RPG applications that use
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SQL</h1>
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<div><p>SQL statements coded in an ILE RPG program must be placed in the
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calculation section. </p>
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<div class="section"><p>This requires that a C be placed in position 6. SQL statements
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can be placed in detail calculations, in total calculations, or in a RPG subroutines.
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The SQL statements are run based on the logic of the RPG statements.</p>
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</div>
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<div class="section"><p>Both uppercase and lowercase letters are acceptable in SQL statements.</p>
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</div>
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<div class="section"><h4 class="sectiontitle">Fixed-form RPG</h4><p>The keywords EXEC SQL indicate the
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beginning of an SQL statement. EXEC SQL must occupy positions 8 through 16
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of the source statement, preceded by a / in position 7. The SQL statement
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may start in position 17 and continue through position 80.</p>
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</div>
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<div class="section"><p>The keyword END-EXEC ends the SQL statement. END-EXEC must occupy
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positions 8 through 16 of the source statement, preceded by a slash (/) in
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position 7. Positions 17 through 80 must be blank.</p>
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</div>
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<div class="section"><p>An UPDATE statement coded in an ILE RPG program might be coded
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as follows: </p>
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<pre>C/EXEC SQL <strong>UPDATE</strong> DEPARTMENT
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C+ <strong>SET</strong> MANAGER = :MGRNUM
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C+ <strong>WHERE</strong> DEPTNO = :INTDEP
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C/END-EXEC</pre>
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</div>
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<div class="section"><img src="./delta.gif" alt="Start of change" /><h4 class="sectiontitle">Free-form RPG</h4><p>Each SQL statement
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must begin with EXEC SQL and end with a semicolon (;). The EXEC SQL keywords
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must be on one line. The remaining part of the SQL statement can be on more
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than one line.</p>
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<p>Example: An UPDATE statement coded in free form might
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be coded in the following way:</p>
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<pre>EXEC SQL <strong>UPDATE</strong> DEPARTMENT
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<strong>SET</strong> MGRNO = :MGR_NUM
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<strong>WHERE</strong> DEPTNO = :INT_DEP;</pre>
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<img src="./deltaend.gif" alt="End of change" /></div>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="rzajpcommentsirpg.htm">Comments in ILE RPG applications that use SQL</a></strong><br />
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In addition to SQL comments (--), ILE RPG comments can be included within SQL statements wherever SQL allows a blank character.</li>
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<li class="ulchildlink"><strong><a href="rzajpcontinuationirpg.htm">Continuation for SQL statements in ILE RPG applications that use SQL</a></strong><br />
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<span><img src="./delta.gif" alt="Start of change" />This topic introduces the continuation for
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SQL statements in two types of RPG format.<img src="./deltaend.gif" alt="End of change" /></span></li>
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<li class="ulchildlink"><strong><a href="rzajpincludecodeirpg.htm">Include code in ILE RPG applications that use SQL</a></strong><br />
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SQL statements and RPG specifications can be included by using the following SQL statement.</li>
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<li class="ulchildlink"><strong><a href="rzajpdirectivesirpg.htm">Use directives in ILE RPG applications that use SQL</a></strong><br />
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RPG directives are handled by the SQL precompiler according to the value of the RPG preprocessor options parameter (RPGPPOPT). If the RPG preprocessor is used, the SQL precompile will run using the expanded preprocessed source.</li>
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<li class="ulchildlink"><strong><a href="rzajpsequenceirpg.htm">Sequence numbers in ILE RPG applications that use SQL</a></strong><br />
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The sequence numbers of the source statements generated by the
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SQL precompiler are based on the *NOSEQSRC/*SEQSRC keywords of the OPTION
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parameter on the <span class="cmdname">CRTSQLRPGI</span> command. </li>
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<li class="ulchildlink"><strong><a href="rzajprpiamco.htm">Names in ILE RPG applications that use SQL</a></strong><br />
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Any valid ILE RPG variable name can be used for a host variable with the following restrictions.</li>
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<li class="ulchildlink"><strong><a href="rzajpstmtlabelsirpg.htm">Statement labels in ILE RPG applications that use SQL</a></strong><br />
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A TAG statement can precede any SQL statement. Code the TAG statement on the line preceding EXEC SQL.</li>
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<li class="ulchildlink"><strong><a href="rzajpwheneverirpg.htm">WHENEVER statement in ILE RPG applications that use SQL</a></strong><br />
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The target for the GOTO clause must be the label of the TAG statement. The scope rules for the GOTO/TAG must be observed.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzajprpgi.htm" title="This topic describes the unique application and coding requirements for embedding SQL statements in an ILE RPG program. The coding requirements for host variables are defined.">Code SQL statements in ILE RPG applications</a></div>
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</div>
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</div>
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</body>
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</html>
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