64 lines
3.9 KiB
HTML
64 lines
3.9 KiB
HTML
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<meta name="DC.Title" content="Use indicator variables in ILE RPG applications that use SQL" />
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<meta name="abstract" content="An indicator variable is a binary field with length less than 5 (2 bytes)." />
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<meta name="description" content="An indicator variable is a binary field with length less than 5 (2 bytes)." />
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<meta name="DC.subject" content="indicator variable, ILE RPG, ILE RPG program, indicator structure, coding requirement, indicator variable" />
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<title>Use indicator variables in ILE RPG applications that use SQL</title>
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</head>
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<body id="rzajpindicatorirpg"><a name="rzajpindicatorirpg"><!-- --></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">Use indicator variables in ILE RPG applications that use SQL</h1>
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<div><p>An indicator variable is a binary field with length less than 5
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(2 bytes).</p>
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<div class="section"><p>An indicator array can be defined by declaring the variable element
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length of 4,0 and specifying the DIM on the definition specification.</p>
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</div>
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<div class="section"><p>On retrieval, an indicator variable is used to show if its associated
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host variable has been assigned a null value. On assignment to a column, a
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negative indicator variable is used to indicate that a null value should be
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assigned.</p>
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</div>
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<div class="section"><p>Indicator variables are declared in the same way as host variables
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and the declarations of the two can be mixed in any way that seems appropriate
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to the programmer.</p>
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</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="rzajpexampindicatorirpg.htm">Example: Use indicator variables in ILE RPG applications that use SQL</a></strong><br />
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The following is an example of declaring indicator variables in ILE RPG.</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 class="relref"><strong>Related reference</strong><br />
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<div><a href="../db2/rbafzmstch2refvar.htm">References to variables</a></div>
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