86 lines
4.9 KiB
HTML
86 lines
4.9 KiB
HTML
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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="REF (Reference) keyword for ICF files" />
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<meta name="abstract" content="Use this file-level keyword to specify the name of a file from which field descriptions are to be retrieved." />
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<meta name="description" content="Use this file-level keyword to specify the name of a file from which field descriptions are to be retrieved." />
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<title>ICF Files, REF</title>
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</head>
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<body id="icfref"><a name="icfref"><!-- --></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">REF (Reference) keyword for ICF files</h1>
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<div><p>Use this file-level keyword to specify the name of a file from
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which field descriptions are to be retrieved.</p>
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<div class="section"><p>Use it when you want to duplicate descriptive information from
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several fields in a previously defined record format. This keyword allows
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you to code the file name once rather than on each field that refers to the
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file as is required by the REFFLD keyword. To refer to more than one file,
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use the REFFLD keyword. The REF keyword can be specified only once.</p>
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<div class="p">The
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format of the keyword is: <pre>REF([library-name/]database-file-name [record-format-name])</pre>
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</div>
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<p>If there is more than one record format in the reference
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file, specify a record format name as a parameter value for this keyword to
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tell the <span class="keyword">i5/OS™</span> operating
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system which one to use unless the record formats should be searched sequentially.</p>
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<p>The
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database-file-name is a required parameter value for this keyword. The library-name
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and the record-format-name are optional.</p>
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<p>If
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you do not specify the library-name, the current library list (*LIBL) at file
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creation time is used. If the record-format-name is not specified, each format
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is searched in order (as they are specified). The first occurrence of the
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field is used. For more information, see the topic <a href="../dds/specref.htm">When to specify REF and REFFLD keywords for DDS files</a>.</p>
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<p>You can specify a distributed data management (DDM) file
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on this keyword. When using a DDM file, the database-file-name and the library-name
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are the DDM file name and library name on the source system. The record-format-name
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is 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">Examples</h4> <p>In the first example, FLD1 has the same
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attributes as the first (or only) FLD1 in the file, FILE1:</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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A REF(FILE1)
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A R RECORD
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A FLD1 R
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A</pre>
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<p>In the second example, FLD1 has the same attributes as
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FLD1 in RECORD2 in FILE1 in LIB1:</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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A REF(LIB1/FILE1 RECORD2)
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A R RECORD
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A FLD1 R
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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="rzakemstckeyw.htm" title="These topics contain the keyword entries that you can specify when you define ICF files.">DDS keyword entries for ICF files (positions 45 through 80)</a></div>
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</div>
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