69 lines
3.7 KiB
HTML
69 lines
3.7 KiB
HTML
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<meta name="abstract" content="This example shows how to change and retrieve a data area." />
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<title>Example: Change and retrieve a data area</title>
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<body id="crdae"><a name="crdae"><!-- --></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">Example: Change and retrieve a data area</h1>
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<div><p>This example shows how to change and retrieve a data area.</p>
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<div class="section"> <p>The following is an example of using the <span class="cmdname">Change Data
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Area (CHGDTAARA)</span> and <span class="cmdname">Retrieve Data Area (RTVDTAARA)</span> commands
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for character substring operations.</p>
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<p>This example: </p>
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<ul><li>Creates a 10-character data area named DA1 (in library MYLIB) with initial
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value <samp class="codeph">ABCD5678IJ</samp></li>
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<li>Declares a 5-character variable named &CLVAR1</li>
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<li>Changes the contents of data area DA1 (starting at position 5 for length
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4) to the value <samp class="codeph">EFG</samp> padding after the G with 1 blank)</li>
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<li>Retrieves the contents of data area DA1 (starting at position 5 for length
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5) into the CL variable &CLVAR1</li>
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</ul>
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<p>To do this, the following commands would be entered: </p>
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<pre>DCL VAR(&CLVAR1) TYPE(*CHAR) LEN(5)
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.
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CRTDTAARA DTAARA(MYLIB/DA1) TYPE(*CHAR) LEN(10) +
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VALUE('ABCD5678IJ')
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.
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.
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.
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CHGDTAARA DTAARA((MYLIB/DA1) (5 4)) VALUE('EFG')
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RTVDTAARA DTAARA((MYLIB/DA1) (5 5)) RTNVAR(&CLVAR1)</pre>
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<p>The variable &CLVAR1 now contains <samp class="codeph">'EFG I'</samp>.</p>
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</div>
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<div>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="dtaas.htm" title="A data area is an object used to hold data for access by any job running on the system.">Use data areas</a></div>
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</div>
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<div class="relinfo"><strong>Related information</strong><br />
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<div><a href="../cl/rtvdtaara.htm">Retrieve Data Area (RTVDTAARA) command</a></div>
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<div><a href="../cl/chgdtaara.htm">Change Data Area (CHGDTAARA) command</a></div>
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</div>
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