104 lines
5.8 KiB
HTML
104 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="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="COMP (Comparison) keyword for display files" />
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<meta name="abstract" content="Use this field-level keyword to specify that the i5/OS operating system is to compare the data that the workstation user types into an input or input/output field with the specified value." />
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<meta name="description" content="Use this field-level keyword to specify that the i5/OS operating system is to compare the data that the workstation user types into an input or input/output field with the specified value." />
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<meta name="DC.subject" content="COMP (Comparison) keyword" />
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<meta name="keywords" content="COMP (Comparison) 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="rzakcmstdfcmp.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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<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>COMP (Comparison) keyword for display files</title>
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</head>
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<body id="rzakcmstdfcomp"><a name="rzakcmstdfcomp"><!-- --></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">COMP (Comparison) keyword for display files</h1>
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<div><p>Use this field-level keyword to specify that the <span class="keyword">i5/OS™</span> operating
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system is to compare the data that the workstation user types into an input
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or input/output field with the specified value.</p>
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<div class="section"><p>The relational operator is the criterion for the comparison. If
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the data typed in this field fails this validity check, the <span class="keyword">i5/OS</span> operating
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system displays an error message. Note that the <span class="keyword">i5/OS</span> operating
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system performs this checking only if the field is changed by the workstation
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user or if its modified data tag (MDT) is set on using DSPATR(MDT).</p>
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<div class="note"><span class="notetitle">Note:</span> See
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the <a href="rzakcmstdfchkme.htm">CHKMSGID (Check Message Identifier) keyword for display files</a> for information
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about defining user-specified error messages.</div>
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<p>The format of the keyword
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is:</p>
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<pre>COMP(relational-operator value)</pre>
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<p>You can specify
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only one operation for the COMP keyword and only one COMP keyword for a field.</p>
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<p>The
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valid entries for the relational operator are:</p>
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<dl><dt><strong>Relational operator</strong></dt>
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<dd><strong>Meaning</strong></dd>
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<dt class="dlterm">EQ</dt>
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<dd>Equal</dd>
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<dt class="dlterm">NE</dt>
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<dd>Not equal</dd>
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<dt class="dlterm">LT</dt>
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<dd>Less than</dd>
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<dt class="dlterm">NL</dt>
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<dd>Not less than</dd>
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<dt class="dlterm">GT</dt>
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<dd>Greater than</dd>
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<dt class="dlterm">NG</dt>
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<dd>Not greater than</dd>
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<dt class="dlterm">LE</dt>
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<dd>Less than or equal</dd>
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<dt class="dlterm">GE</dt>
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<dd>Greater than or equal</dd>
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</dl>
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<p>The specified value must be either numeric or character,
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depending on the data type (decimal positions entry). Numeric values are expressed
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by the digits 0 through 9 and a leading sign (+ or -). Character values must
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be enclosed in single quotation marks.</p>
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<div class="note"><span class="notetitle">Note:</span> If the field you are defining is numeric,
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alignment is based on the decimal positions specified (in positions 36 and
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37), and leading and trailing blanks are filled with zeros. If no decimal
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point is typed in, the decimal point is assumed to be to the right of the
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last (farthest right) digit. For example, for a numeric field with a length
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of 5 (specified in position 34) and 2 decimal positions (specified in position
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37), 1.2 is interpreted as 001.20, and 100 is interpreted as 100.00.</div>
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<p>You
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cannot specify the COMP keyword on a floating-point field (F in position 35).</p>
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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 COMP keyword.</p>
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<pre>|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8
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00010A FIELD2 6 OI 10 10COMP(EQ +021920)
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00020A FIELD1 3 I 11 11COMP(EQ 'ABC')
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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="relref"><strong>Related reference</strong><br />
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<div><a href="rzakcmstdfcmp.htm" title="This keyword is equivalent to the COMP keyword.">CMP (Comparison) keyword for display 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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