107 lines
6.3 KiB
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107 lines
6.3 KiB
HTML
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<meta name="DC.Title" content="REFFLD (Referenced Field) keyword for ICF files" />
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<meta name="abstract" content="Use this field-level keyword when referring to a field under one of the several conditions." />
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<title>ICF Files, REFFLD</title>
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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 ICF files</h1>
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<div><p><span>Use this field-level keyword when referring
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to a field under one of the several conditions.</span></p>
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<div class="section"><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 class="p">The format of the keyword is: <pre>REFFLD([record-format-name/]referenced-field-name [ {*SRC |
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[library-name/]database-file-name}])</pre>
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</div>
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<div class="p">The referenced-field-name
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is required even if it is the same as the referencing field. Use the record-format-name
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when the referenced file contains more than one record format. Use *SRC (rather
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than the database-file-name) when the referenced-field-name is in the same
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DDS source file as the referencing field. *SRC is the default value when the
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database-file-name, the library-name, and the REF keyword are not specified.
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<div class="note"><span class="notetitle">Note:</span> When you refer to a field in the same DDS source file, the field you
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are referring to must precede the field you are defining.</div>
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</div>
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<p>Specify
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the database-file-name (qualified by its library-name if necessary) when you
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want 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 REF at the file level and REFFLD
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at the field level, the particular search sequence depends on both the REF
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and REFFLD keywords. For more information, see the topic <a href="../dds/specref.htm">When to specify REF and REFFLD keywords
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for DDS files</a>.</p>
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<p>The letter R must be specified in position 29.
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In some cases, if you specify a value for length, some keywords specified
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with the field in the database file are not included in the ICF file. For
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more information, see <a href="ref290.htm#ref290">Reference for ICF files (position 29)</a>.</p>
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<p>You
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can specify a distributed data management (DDM) file on this keyword.</p>
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<p>When
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using a DDM file, the database-file-name and the library-name are the DDM
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file and library name on the source system. The referenced-field-name and
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the record-format-name are the field name and the record format name in the
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remote file on the target system.</p>
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<div class="note"><span class="notetitle">Note:</span> Interactive
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data definition utility (IDDU) files cannot be used as reference files.</div>
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<p>Option
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indicators are not 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
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00030A ITEM1 R REFFLD(ITEM)
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00040A ITEM2 R REFFLD(FMAT1/ITEM)
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00050A ITEM3 R REFFLD(ITEM FILEX)
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00060A ITEM4 R REFFLD(ITEM LIBY/FILEX)
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00070A ITEM5 R REFFLD(FMAT1/ITEM LIBY/FILEX)
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00080A ITEM6 R REFFLD(ITEM *SCR)
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A</pre>
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<p>Because the REF keyword is not specified, the default
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for lines 00030 and 00040 is to search the DDS source file in which they are
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specified. In line 00080, the parameter value *SRC explicitly specifies the
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source file.</p>
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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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<div class="relref"><strong>Related reference</strong><br />
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<div><a href="ref290.htm" title="Specify R in this position to use the reference function of the program to copy the attributes of a previously defined named field (called the referenced field) to the field you are defining.">Reference for ICF files (position 29)</a></div>
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