61 lines
3.9 KiB
HTML
61 lines
3.9 KiB
HTML
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<meta name="DC.Title" content="Differences in RPG/400 because of structure parameter passing techniques" />
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<meta name="abstract" content="The SQL RPG/400 precompiler attempts to use the structure parameter passing technique, if possible." />
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<meta name="description" content="The SQL RPG/400 precompiler attempts to use the structure parameter passing technique, if possible." />
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<meta name="DC.subject" content="parameter passing, differences, RPG/400, structure parameter passing, RPG/400 program, coding SQL statements" />
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<title>Differences in RPG/400 because of structure parameter passing techniques</title>
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<body id="rzajprpgparm"><a name="rzajprpgparm"><!-- --></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">Differences in RPG/400 because of structure parameter passing techniques</h1>
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<div><p>The SQL RPG/400<sup>®</sup> precompiler attempts to use the structure
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parameter passing technique, if possible.</p>
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<div class="section"><p>The precompiler generates code where each host variable is a separate
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parameter when the following conditions are true:</p>
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<ul><li>The data length of the host variables, referred to in the statement, is
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greater than 9935. Because SQL uses 64 bytes of the structure, 9935 + 64 =
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9999, the maximum length of a data structure.</li>
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<li>An indicator is specified on the statement where the length of the indexed
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indicator name plus the required index value is greater than six characters.
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The precompiler must generate an assignment statement for the indicator with
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the indicator name in the result field that is limited to six characters ("INDIC,1"
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requires seven characters).</li>
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<li>The length of a host variable is greater than 256. This can happen when
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a data structure without subfields is used as a host variable, and its length
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exceeds 256. Subfields cannot be defined with a length greater than 256.</li>
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</ul>
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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="rzajprpg.htm" title="The RPG/400 licensed program supports both RPG II and RPG III programs.">Code SQL statements in RPG/400 applications</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="../rzajq/opens.htm">Database application design tips: Use structured parameter passing techniques</a></div>
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