89 lines
7.5 KiB
HTML
89 lines
7.5 KiB
HTML
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<meta name="DC.Title" content="Code SQL statements in COBOL applications" />
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<meta name="abstract" content="This topic describes the unique application and coding requirements for embedding SQL statements in a COBOL program. Requirements for host structures and host variables are defined." />
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<meta name="description" content="This topic describes the unique application and coding requirements for embedding SQL statements in a COBOL program. Requirements for host structures and host variables are defined." />
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<title>Code SQL statements in COBOL applications</title>
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</head>
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<body id="rzajpcob"><a name="rzajpcob"><!-- --></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">Code SQL statements in COBOL applications</h1>
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<div><p>This topic describes the unique application and coding requirements
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for embedding SQL statements in a COBOL program. Requirements for host structures
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and host variables are defined.</p>
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<p>The <span class="keyword">iSeries™</span> system supports
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more than one COBOL compiler. The <span class="keyword">DB2<sup>®</sup> UDB Query Manager and SQL Development Kit</span> licensed
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program only supports the COBOL for <span class="keyword">iSeries</span> and
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ILE COBOL for <span class="keyword">iSeries</span> languages. </p>
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<div class="note"><span class="notetitle">Note:</span> By using the code examples, you agree to the terms of the <a href="codedisclaimer.htm">Code license and disclaimer information</a>.</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="rzajpsqlcacobol.htm">Define the SQL communications area in COBOL applications that use SQL</a></strong><br />
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A COBOL program can be written to use the SQLCA to check return status for embedded SQL statements, or the program can use the SQL diagnostics area to check return status.</li>
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<li class="ulchildlink"><strong><a href="rzajpsqldacobol.htm">Define SQL descriptor areas in COBOL applications that use SQL</a></strong><br />
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<span><img src="./delta.gif" alt="Start of change" />There are two types of SQL descriptor areas.
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One is defined with the ALLOCATE DESCRIPTOR statement. The other is defined
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using the SQLDA structure. In this topic, only the SQLDA form is discussed.<img src="./deltaend.gif" alt="End of change" /></span></li>
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<li class="ulchildlink"><strong><a href="rzajpembedsqlcobol.htm">Embed SQL statements in COBOL applications that use SQL</a></strong><br />
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SQL statements can be coded in COBOL program sections as in this table.</li>
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<li class="ulchildlink"><strong><a href="rzajphostvariablescobol.htm">Use host variables in COBOL applications that use SQL</a></strong><br />
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All host variables used in SQL statements must be explicitly declared prior to their first use.</li>
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<li class="ulchildlink"><strong><a href="rzajphoststructurecobol.htm">Use host structures in COBOL applications that use SQL</a></strong><br />
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A <em>host structure</em> is a named set of host variables that is
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defined in your program's DATA DIVISION.</li>
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<li class="ulchildlink"><strong><a href="rzajpexternalcobol.htm">Use external file descriptions in COBOL applications that use SQL</a></strong><br />
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SQL uses the COPY DD-format-name, COPY DD-ALL-FORMATS, COPY DDS-format-name, COPY DDR-format-name, COPY DDR-ALL-FORMATS, COPY DDSR-format-name, COPY DDS-ALL-FORMATS, and COPY DDSR-ALL-FORMATS to retrieve host variables from the file definitions.</li>
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<li class="ulchildlink"><strong><a href="rzajpequivsqlcobol.htm">Determine equivalent SQL and COBOL data types</a></strong><br />
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The precompiler determines the base SQLTYPE and SQLLEN of host variables based on this table. If a host variable appears with an indicator variable, the SQLTYPE is the base SQLTYPE plus one.</li>
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<li class="ulchildlink"><strong><a href="rzajpindicatorcobol.htm">Use indicator variables in COBOL applications that use SQL</a></strong><br />
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An <em>indicator variable</em> is a two-byte integer
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(PIC S9(m) USAGE BINARY, where m is from 1 to 4).</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="rzajpkickoff.htm" title="This topic collection explains how to create database applications in host languages that use DB2 Universal Database for iSeries SQL statements and functions.">Embedded SQL programming</a></div>
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</div>
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<div class="relconcepts"><strong>Related concepts</strong><br />
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<div><a href="rzajpwritesqlapp.htm" title="You can create database applications in host languages that use DB2 UDB for iSeries SQL statements and functions.">Write applications that use SQL</a></div>
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<div><a href="rzajperrorandwarning.htm" title="The conditions described in the following topics could produce an error or warning message during an attempted compile process.">Error and warning messages during a compile of application programs that use SQL</a></div>
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</div>
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<div class="relref"><strong>Related reference</strong><br />
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<div><a href="rzajpsamprog.htm" title="This topic contains a sample application showing how to code SQL statements in each of the languages supported by the DB2 UDB for iSeries system.">Sample programs using DB2 UDB for iSeries statements</a></div>
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</div>
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</div>
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</body>
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