87 lines
5.5 KiB
HTML
87 lines
5.5 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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<head>
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<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
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<meta name="DC.Title" content="Reference for ICF files (position 29)" />
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<meta name="abstract" content="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." />
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<meta name="description" content="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." />
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<meta name="DC.subject" content="reference positional entry" />
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<meta name="keywords" content="reference positional entry" />
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<meta name="DC.Relation" scheme="URI" content="cmnfl.htm" />
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<meta name="DC.Relation" scheme="URI" content="../dds/specref.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzakemsticfref.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzakemsticfreff.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2001, 2006" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<title>Reference for ICF files (position 29)</title>
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</head>
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<body id="ref290"><a name="ref290"><!-- --></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">Reference for ICF files (position 29)</h1>
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<div><p>Specify R in this position to use the reference function of the
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program to copy the attributes of a previously defined named field (called
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the referenced field) to the field you are defining.</p>
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<div class="section"><p>The referenced field can be previously defined in the ICF file
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you are defining. The referenced field can also be defined in a previously
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created database file (the database file to be referenced is specified with
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the REF or REFFLD keyword). The field attributes referenced are the length,
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data type, and decimal positions of the field, as well as the ALIAS, FLTPCN,
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and TEXT keywords.</p>
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<p>If you do not specify R, you cannot use the reference
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function for this field and you must specify field attributes for this field.</p>
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<p>Position
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29 must be blank at the file and record levels.</p>
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<p>The name of the referenced
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field can be either the same as the field you are defining or different from
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the field you are defining. If the name of the referenced field is the same
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as the field you are defining, you need only specify the letter R in position
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29 (in addition to specifying the name of the field you are defining in positions
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19 through 28). If the name of the field you are defining is different, you
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must specify the name of the referenced field with the REFFLD (Referenced
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Field) keyword.</p>
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<p>You can specify the name of
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the file defining the referenced field as a parameter value with the REF or
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REFFLD keyword.</p>
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<p>You do not need to copy all attributes
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from the previously described field to the field you are defining. To override
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specific attributes of the referenced field, specify those attributes for
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the field you are defining. For example, if you specify a length for the
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field you are defining, the length is not copied from the referenced field.</p>
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<p>When
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you override the data type to character (by specifying A in position 35),
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the decimal positions value is not copied from the referenced field.</p>
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<div class="note"><span class="notetitle">Note:</span> After the ICF file is created, you can delete or change
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the referenced file without affecting the field descriptions in the ICF file.
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Delete and re-create the ICF file to incorporate changes made in the referenced
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file.</div>
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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="cmnfl.htm" title="Here are some rules and examples for filling in positions 1 through 44 of the data description specifications (DDS) form.">Define an ICF file using DDS</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="rzakemsticfreff.htm" title="Use this field-level keyword when referring to a field under one of the several conditions.">REFFLD (Referenced Field) keyword for ICF files</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="../dds/specref.htm">When to specify REF and REFFLD keywords for DDS files</a></div>
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<div><a href="rzakemsticfref.dita">REF (Reference) keyword for ICF 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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