67 lines
4.2 KiB
HTML
67 lines
4.2 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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<html lang="en-us" xml:lang="en-us">
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<meta name="DC.Type" content="task" />
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<meta name="DC.Title" content="Change alphanumeric programs to DBCS programs" />
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<meta name="abstract" content="If an alphanumeric application program uses externally described files, you can change that application program to a DBCS application program by changing the externally described files." />
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<meta name="description" content="If an alphanumeric application program uses externally described files, you can change that application program to a DBCS application program by changing the externally described files." />
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<meta name="DC.Relation" scheme="URI" content="rbagsdesigndbcsapps.htm" />
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<meta name="DC.Relation" scheme="URI" content="../rzakc/rzakcmstzigcalt.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<title>Change alphanumeric programs to DBCS programs</title>
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</head>
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<body id="rbagschngalphatodbcs"><a name="rbagschngalphatodbcs"><!-- --></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">Change alphanumeric programs to DBCS programs</h1>
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<div><p>If an alphanumeric application program uses externally described
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files, you can change that application program to a DBCS application program
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by changing the externally described files.</p>
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<div class="section">To convert an application program, follow these steps:</div>
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<ol><li><span>Create a duplicate copy of the source statements for the alphanumeric
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file that you want to change.</span></li>
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<li><span>Change alphanumeric constants and literals to double-byte constants
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and literals.</span></li>
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<li><span>Change fields in the file to the open (O) data type or specify
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the Alternative Data Type (IGCALTTYP) DDS keyword so that you can enter both
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double-byte and alphanumeric data in these fields. You might
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want to change the length of the fields as the double-byte data takes more
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space.</span></li>
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<li><span>Store the converted file in a separate library. Give the file the
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same name as its alphanumeric version.</span></li>
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<li><span>When you want to use the changed file in a job, change the library
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list, using the Change Library List (CHGLIBL) command, for the job in which
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the file is used. The library in which the DBCS display file is stored is
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then checked before the library in which the alphanumeric version of the file
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is stored.</span></li>
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</ol>
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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="rbagsdesigndbcsapps.htm" title="Design your application programs for processing double-byte data in the same way you design application programs for processing alphanumeric data.">Develop applications that process DBCS data</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="../rzakc/rzakcmstzigcalt.htm">Alternative Data Type (IGCALTTYP) keyword</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="../cl/chglibl.htm">Change Library List (CHGLIBL) command</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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