65 lines
4.6 KiB
HTML
65 lines
4.6 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="concept" />
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<meta name="DC.Title" content="Specify the type of processing" />
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<meta name="abstract" content="When you use a file in a program, the system needs to know what type of operation you plan to use for that file. You can specify the type of processing with the OPTION parameter." />
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<meta name="description" content="When you use a file in a program, the system needs to know what type of operation you plan to use for that file. You can specify the type of processing with the OPTION parameter." />
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<meta name="DC.subject" content="specifying, type of processing, processing, type of, specifying, OPTION parameter, parameter, OPTION" />
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<meta name="keywords" content="specifying, type of processing, processing, type of, specifying, OPTION parameter, parameter, OPTION" />
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<meta name="DC.Relation" scheme="URI" content="rbafoprocop.htm" />
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<meta name="DC.Relation" scheme="URI" content="rbafoauthd.htm" />
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<meta name="DC.Relation" scheme="URI" content="rbafoconcc.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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<!-- 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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<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>Specify the type of processing</title>
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</head>
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<body id="rbafopretyp"><a name="rbafopretyp"><!-- --></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">Specify the type of processing</h1>
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<div><p>When you use a file in a program, the system needs to know what
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type of operation you plan to use for that file. You can specify the type
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of processing with the OPTION parameter.</p>
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<p>For example, the system needs to know if you plan to just read data in
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the file or if you plan to read and update the data. The valid operation options
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are: input, output, update, and delete. The system determines the options
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you are using from the information you specify in your high-level language
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program or from the OPTION parameter on the Open Database File (OPNDBF) and
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Open Query File (OPNQRYF) commands.</p>
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<p>The system uses the options to determine which operations are allowed in
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your program. For example, if you open a file for input only and your program
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tries an output operation, your program receives an error.</p>
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<p>Normally, the system verifies that you have the required data authority
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when you do an input/output operation in your program. However, when you use
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the OPNQRYF or OPNDBF command, the system verifies at the time the file is
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opened that you have the required data authority to perform the operations
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specified on the OPTION parameter. </p>
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<p>The system also uses these options to determine the locks to use to protect
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the data integrity of the files and records being processed by your program.</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="rbafoprocop.htm" title="These topics describe several runtime processing options.">File processing options</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="rbafoauthd.htm" title="Listed here are the types of data authorities, or permissions, to grant users access to physical and logical files.">Types of data authority</a></div>
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<div><a href="rbafoconcc.htm" title="By definition, all database files can be used by many users at the same time. However, some operations can lock the file, member, or data records in a member to prevent them from being shared across jobs.">Lock shared data</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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