72 lines
4.5 KiB
HTML
72 lines
4.5 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="reference" />
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<meta name="DC.Title" content="External file description considerations for host structure arrays in ILE RPG applications that use SQL" />
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<meta name="abstract" content="For device files, if INDARA was not specified and the file contains indicators, the declaration is not used as a host structure array. The indicator area is included in the structure that is generated and would cause the storage to be separated." />
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<meta name="description" content="For device files, if INDARA was not specified and the file contains indicators, the declaration is not used as a host structure array. The indicator area is included in the structure that is generated and would cause the storage to be separated." />
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<meta name="DC.subject" content="external file description, host structure arrays, ILE RPG, file description, host structure arrays, ILE RPG, *NOCVTDT, precompiler parameter, DATFMT, DATSEP, TIMFMT, TIMSEP, ILE RPG" />
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<meta name="keywords" content="external file description, host structure arrays, ILE RPG, file description, host structure arrays, ILE RPG, *NOCVTDT, precompiler parameter, DATFMT, DATSEP, TIMFMT, TIMSEP, ILE RPG" />
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<meta name="DC.Relation" scheme="URI" content="rzajpexternalirpg.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
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<link rel="stylesheet" type="text/css" href="./ibmdita.css" />
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<link rel="stylesheet" type="text/css" href="./ic.css" />
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<title>External file description considerations for host structure arrays
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in ILE RPG applications that use SQL</title>
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</head>
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<body id="rzajpirpgexternal"><a name="rzajpirpgexternal"><!-- --></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">External file description considerations for host structure arrays
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in ILE RPG applications that use SQL</h1>
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<div><p>For device files, if INDARA was not specified and the file contains
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indicators, the declaration is not used as a host structure array. The indicator
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area is included in the structure that is generated and would cause the storage
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to be separated. </p>
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<div class="section"><p>If OPTION(*NOCVTDT) is specified and the date and time format
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and separator of date and time field definitions within the file are not the
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same as the DATFMT, DATSEP, TIMFMT, and TIMSEP parameters on the CRTSQLRPGI
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command, then the host structure array is not usable.</p>
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</div>
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<div class="section"><p>In the following example, the DEPARTMENT table is included in
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the ILE RPG program and used to declare a host structure array.
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A blocked FETCH statement is then used to retrieve 10 rows into the host structure
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array.</p>
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<pre>DDEPARTMENT E DS OCCURS(10)
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C/EXEC SQL
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C+ <strong>DECLARE</strong> C1 <strong>CURSOR FOR</strong>
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C+ <strong>SELECT</strong> *
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C+ <strong>FROM</strong> CORPDATA.DEPARTMENT
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C/END-EXEC
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…
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C/EXEC SQL
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C+ <strong>FETCH</strong> C1 <strong>FOR</strong> 10 <strong>ROWS
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C+ INTO</strong> :DEPARTMENT
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C/END-EXEC
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</pre>
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</div>
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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="rzajpexternalirpg.htm" title="Field definitions for externally described files, including renaming of fields, are recognized by the SQL precompiler. The external definition form of the data structure can be used to obtain a copy of the column names to be used as host variables.">Use external file descriptions in ILE RPG applications that use SQL</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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