66 lines
4.1 KiB
HTML
66 lines
4.1 KiB
HTML
<?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="concept" />
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<meta name="DC.Title" content="Subtract times" />
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<meta name="abstract" content="The result of subtracting one time (TIME2) from another (TIME1) is a time duration that specifies the number of hours, minutes, and seconds between the two times." />
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<meta name="description" content="The result of subtracting one time (TIME2) from another (TIME1) is a time duration that specifies the number of hours, minutes, and seconds between the two times." />
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<meta name="DC.subject" content="arithmetic operations using OPNQRYF command, time, arithmetic using OPNQRYF command" />
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<meta name="keywords" content="arithmetic operations using OPNQRYF command, time, arithmetic using OPNQRYF command" />
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<meta name="DC.Relation" scheme="URI" content="rbafodttaopq.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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<meta name="DC.Format" content="XHTML" />
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<meta name="DC.Identifier" content="rbafotsubtr" />
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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>Subtract times</title>
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</head>
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<body id="rbafotsubtr"><a name="rbafotsubtr"><!-- --></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">Subtract times</h1>
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<div><p>The result of subtracting one time (TIME2) from another (TIME1)
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is a time duration that specifies the number of hours, minutes, and seconds
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between the two times.</p>
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<div class="p">The data type of the result is DECIMAL(6,0). If TIME1 is greater than or
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equal to TIME2, TIME2 is subtracted from TIME1. If TIME1 is less than TIME2,
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however, TIME1 is subtracted from TIME2, and the sign of the result is made
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negative. The following procedural description clarifies the steps involved
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in the operation RESULT = TIME1 - TIME2. <div class="fignone"><p>If %SECOND(TIME2) <= %SECOND(TIME1) ;<br />
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then %SECOND(RESULT) = %SECOND(TIME1) - %SECOND(TIME2).<br />
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<br />
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If %SECOND(TIME2) > %SECOND(TIME1) ;<br />
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then %SECOND(RESULT) = 60 + %SECOND(TIME1) - %SECOND(TIME2). ;<br />
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%MINUTE(TIME2) is then incremented by 1.<br />
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<br />
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If %MINUTE(TIME2) <= %MINUTE(TIME1) ; <br />
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then %MINUTE(RESULT) = %MINUTE(TIME1) - %MINUTE(TIME2).<br />
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<br />
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If %MINUTE(TIME2) > %MINUTE(TIME1) ; <br />
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then %MINUTE(RESULT) = 60 + %MINUTE(TIME1) - %MINUTE(TIME2). ; <br />
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%HOUR(TIME2) is then incremented by 1.<br />
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<br />
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%HOUR(RESULT) = %HOUR(TIME1) - %HOUR(TIME2).</p>
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</div>
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</div>
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<p>For example, the result of %TIME('11:02:26') - '00:32:56' is 102930 (a
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duration of 10 hours, 29 minutes, and 30 seconds).</p>
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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="rbafodttaopq.htm" title="Date, time, and timestamp values can be incremented, decremented, and subtracted. These operations might involve decimal numbers called durations. These topics include a definition of durations and a specification of the rules for performing arithmetic operations on date, time, and timestamp values.">Perform date, time, and timestamp arithmetic using the Open Query File (OPNQRYF) command</a></div>
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</div>
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</div>
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</body>
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</html> |