94 lines
5.8 KiB
HTML
94 lines
5.8 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="Content-Type" content="text/html; charset=utf-8" />
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<meta name="security" content="public" />
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<meta name="Robots" content="index,follow" />
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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.Type" content="reference" />
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<meta name="DC.Title" content="REF (Reference) keyword for display 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 or when you want to duplicate descriptive information from several fields in a previously described record format." />
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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 or when you want to duplicate descriptive information from several fields in a previously described record format." />
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<meta name="DC.subject" content="REF (Reference) keyword" />
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<meta name="keywords" content="REF (Reference) keyword" />
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<meta name="DC.Relation" scheme="URI" content="rzakcmstkeyent.htm" />
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<meta name="DC.Relation" scheme="URI" content="rzakcmstpos29.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 2001, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 2001, 2006" />
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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="rzakcmstdfref" />
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<meta name="DC.Language" content="en-us" />
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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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>REF (Reference) keyword for display files</title>
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</head>
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<body id="rzakcmstdfref"><a name="rzakcmstdfref"><!-- --></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 display 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 or when you want to duplicate
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descriptive information from several fields in a previously described record
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format.</p>
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<div class="section"><p>You can code the file name once here rather than on REFFLD keywords
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with each of the field descriptions that refer to the file. To refer to more
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than one file, use the REFFLD keyword. (REF 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
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there is more than one record format in the referenced file, specify a record
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format name as a parameter value for this keyword to 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 for this keyword. The library-name
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and the record-format-name are optional.</p>
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<p>If you do not specify the library-name,
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the current library list (*LIBL) at file creation time is used. If the record-format-name
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is not specified, each record format is searched in order (as they are specified).
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The first occurrence of the field name is used. See the <a href="../dds/specref.htm" target="_blank">When to specify REF
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and REFFLD keywords for DDS files</a> topic for the search sequences determined
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by your choice of REF and REFFLD keywords.</p>
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<p>You can specify a distributed
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data management (DDM) file on this keyword.</p>
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<p>When using a DDM file, the
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database-file-name and library-name are the DDM file and library names on
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the source system. The record-format-name is 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> IDDU files cannot be used as reference
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files.</div>
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<p>Option indicators are not valid for this keyword.</p>
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</div>
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<div class="example"><h4 class="sectiontitle">Examples</h4><p>The following examples show how to specify
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the REF keyword.</p>
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<p>In this example, FLD1 has the same attributes as the
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first (or only) FLD1 in FILE1.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00010A REF(FILE1)
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00020A R RECORD
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00030A FLD1 R 2 2
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A</pre>
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<p>In this example, FLD1 has the same attributes as FLD1
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in RECORD2 in FILE1 in LIB1.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00010A REF(LIB/FILE1 RECORD2)
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00020A R RECORD
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00030A FLD1 R 2 2
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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>
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</div>
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</body>
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</html>
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