89 lines
5.7 KiB
HTML
89 lines
5.7 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 name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Field names" />
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<meta name="abstract" content="Listed here are the requirements for specifying field names on the Open Query File (OPNQRYF) command parameters." />
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<meta name="description" content="Listed here are the requirements for specifying field names on the Open Query File (OPNQRYF) command parameters." />
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<meta name="DC.Relation" scheme="URI" content="rbafoopnqf.htm" />
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<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
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<meta name="DC.Rights.Owner" content="(C) Copyright IBM Corporation 1998, 2006" />
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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>Field names</title>
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</head>
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<body id="rbafofn"><a name="rbafofn"><!-- --></a>
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<img src="./delta.gif" alt="Start of change" /><!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">Field names</h1>
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<div><p>Listed here are the requirements for specifying field names on
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the Open Query File (OPNQRYF) command parameters.</p>
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<div class="section"><p>The field name used as the first part of an element in the list
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specified on the MAPFLD parameter must be a simple name, and the field names
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in the record format identified on the FORMAT parameter are always treated
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as simple names. Any other field name specified on an OPNQRYF command parameter
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(QRYSLT, KEYFLD, JFLD, GRPFLD, GRPSLT, or the field-definition expression
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part of the MAPFLD parameter) is a qualified field name, specified as follows:</p>
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<dl><dt class="dlterm">field-name</dt>
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<dd>Specify a simple field name that identifies a field that is defined on
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the MAPFLD parameter, or with a field name that is unique among all field
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names from all record formats included in the list specified on the FILE parameter.
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This form is not allowed if there is no MAPFLD parameter definition for the
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specified field name and the FILE parameter includes more than one record
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format that contains a field with the specified name, even if the same file
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and record format is specified more than once in the list on the FILE parameter. <p>For
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example, AMOUNT is valid if the field named AMOUNT is defined on the MAPFLD
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parameter. It is also valid if AMOUNT is not defined on the MAPFLD parameter,
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as long as there is only one field named AMOUNT in any record format specified
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on the FILE parameter.</p>
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</dd>
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<dt class="dlterm">file-name/field-name</dt>
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<dd>Specify a field name that is qualified with the simple name of the file
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specified on the FILE parameter whose record format contains the field, but
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only if the simple file name is unique among all file names specified on the
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FILE parameter. This form is not allowed if the same simple file name is specified
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more than once in the list specified for the FILE parameter, even if different
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library, member, or record format names are used. <p>For example, WHS01/PARTNBR
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is valid if there is a field named PARTNBR in the record format for file WHS01,
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and file name WHS01 is only specified once on the FILE parameter.</p>
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</dd>
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<dt class="dlterm">file-nbr/field-name</dt>
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<dd>Specify a simple field name that is qualified with the number of the element
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in the FILE parameter list for the record format that contains the field.
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The file-nbr qualifier must be specified without leading zeros. This form
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is only required if the same simple file name is specified more than once
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in the list specified on the FILE parameter.<p>For example, 2/BALDUE is valid
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if the second file record format in the list specified on the FILE parameter
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contains a field named BALDUE.</p>
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</dd>
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<dt class="dlterm">*MAPFLD/field-name</dt>
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<dd>Specify a simple field name that is qualified with the special value *MAPFLD
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if the field is defined on the MAPFLD parameter. When the field is defined,
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this form has the same meaning as specifying the simple field name with no
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qualifier. If the field is not defined on the MAPFLD parameter, *MAPFLD cannot
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be specified. <p>For example, *MAPFLD/AVGBAL is valid if the AVGBAL field
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is specified as the first part of one of the mapped field list elements specified
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on the MAPFLD parameter.</p>
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</dd>
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</dl>
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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="rbafoopnqf.htm" title="The Open Query File (OPNQRYF) command is a control language (CL) command that allows you to perform many data processing functions on database files. These topics discuss how to create a query using the OPNQRYF command, how to specify parameters for its major functions, and how to use it with your high-level language program.">Use Open Query File (OPNQRYF) command</a></div>
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</div>
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</div>
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<img src="./deltaend.gif" alt="End of change" /></body>
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</html>
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