106 lines
6.5 KiB
HTML
106 lines
6.5 KiB
HTML
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<?xml version="1.0" encoding="UTF-8"?>
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<meta name="DC.Title" content="REFFLD (Referenced Field) keyword for display files" />
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<meta name="abstract" content="Use this field-level keyword to refer to a field when the name, record format, file, or library of the referenced field differs from its equivalent in positions 19 through 28." />
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<meta name="description" content="Use this field-level keyword to refer to a field when the name, record format, file, or library of the referenced field differs from its equivalent in positions 19 through 28." />
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<meta name="DC.subject" content="REFFLD (Referenced Field) keyword, Referenced Field (REFFLD) keyword" />
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<meta name="keywords" content="REFFLD (Referenced Field) keyword, Referenced Field (REFFLD) keyword" />
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<meta name="DC.Relation" scheme="URI" content="rzakcmstpos29.htm" />
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<meta name="DC.Relation" scheme="URI" content="../dds/specref.htm" />
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<title>REFFLD (Referenced Field) keyword for display files</title>
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</head>
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<body id="rzakcmstdfrefld"><a name="rzakcmstdfrefld"><!-- --></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">REFFLD (Referenced Field) keyword for display files</h1>
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<div><p>Use this field-level keyword to refer to a field when the name,
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record format, file, or library of the referenced field differs from its equivalent
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in positions 19 through 28.</p>
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<div class="section"><div class="p">Use this field-level keyword when referring to a field under one
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of these conditions: <ul><li>The name of the referenced field is different from the name in positions
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19 through 28.</li>
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<li>The name of the referenced field is the same as the name in positions
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19 through 28, but the record format, file, or library of the referenced field
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is different from that specified with the REF keyword.</li>
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<li>The referenced field occurs in the same DDS source file as the referencing
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field.</li>
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</ul>
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</div>
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<div class="p">The format of the keyword is: <pre>REFFLD([record-format-name/]referenced-field-name
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[{*SRC | [library-name/]database-file-name}])</pre>
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</div>
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<p>The referenced-field-name
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is required even if it is the same as the referencing field. Use the record
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format name when the referenced file contains more than one record format.
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Use *SRC (rather than the database-file-name) when the referenced field name
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is in the same DDS source file as the referencing field. *SRC is the default
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value when the database-file-name and library-name are not specified and the
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REF keyword is not specified at the file level.</p>
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<div class="note"><span class="notetitle">Note:</span> When you refer to
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a field in the same DDS source file, the field you are referring to must precede
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the field you are defining.</div>
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<p>Specify the database-file-name (with
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its library-name, if necessary) to search a particular database file.</p>
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<p>If,
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in the same DDS source file, you specify the REF keyword at the file level
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and REFFLD at the field level, the particular search sequence depends on both
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the REF and REFFLD keywords.</p>
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<p>You must specify an R in position 29. In
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some cases, some keywords specified with the field in the database file are
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not included in the display file.</p>
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<p>You can specify a distributed data
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management (DDM) file on this keyword.</p>
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<p>When using a DDM file, the database-file-name
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and library-name are the DDM file and library names on the source system.
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The referenced-field-name and the record-format-name are the field name and
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the record format name in the remote file on the target system.</p>
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<div class="note"><span class="notetitle">Note:</span> IDDU
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files cannot be used as reference files.</div>
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<p>Option indicators are not
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valid for this keyword.</p>
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</div>
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<div class="example"><h4 class="sectiontitle">Example</h4><p>The following example shows how to specify
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the REFFLD keyword.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00010A R FMAT1
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00020A ITEM 5 3 1
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00030A ITEM1 R 5 2REFFLD(ITEM)
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00040A ITEM2 R 5 12REFFLD(FMAT1/ITEM)
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00050A ITEM3 R 5 22REFFLD(ITEM FILEX)
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00060A ITEM4 R 5 32REFFLD(ITEM LIBY/FILEX)
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00070A ITEM5 R 5 42REFFLD(FMAT1/ITEM LIBY/FILEX)
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00080A ITEM6 R 5 52REFFLD(ITEM *SRC)
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A</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="rzakcmstkeyent.htm" title="You type the keyword entries that define display files in positions 45 through 80 (functions).">DDS keyword entries for display files (positions 45 through 80)</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="rzakcmstpos29.htm" title="You can specify R in this position to use the reference function of the i5/OS operating system to copy the attributes of a previously defined named field (called the referenced field) to the field you are defining.">Reference for display files (position 29)</a></div>
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<div><a href="../dds/specref.htm">When to specify REF and REFFLD keywords for DDS files</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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