60 lines
4.1 KiB
HTML
60 lines
4.1 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="concept" />
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<meta name="DC.Title" content="Use logical files to secure data" />
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<meta name="abstract" content="This topic discusses the ways you can use logical files to secure data." />
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<meta name="description" content="This topic discusses the ways you can use logical files to secure data." />
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<meta name="DC.subject" content="data, using, logical files to secure" />
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<meta name="keywords" content="data, using, logical files to secure" />
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<meta name="DC.Relation" scheme="URI" content="rbafosecuc.htm" />
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<meta name="DC.Relation" scheme="URI" content="rbafodrflf.htm" />
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<meta name="DC.Relation" scheme="URI" content="rbafodeffd.htm" />
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<meta name="DC.Relation" scheme="URI" content="rbafosorec.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="rbafoseclf" />
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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>Use logical files to secure data</title>
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</head>
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<body id="rbafoseclf"><a name="rbafoseclf"><!-- --></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">Use logical files to secure data</h1>
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<div><p>This topic discusses the ways you can use logical
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files to secure data.</p>
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<p>You can use a logical file to prevent a field in a physical file from being
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viewed. This is accomplished by describing a logical file record format that
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does not include fields you do not want the user to see.</p>
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<p>You can also use a logical file to prevent one or more fields from being
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changed in a physical file by specifying, for those fields you want to protect,
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an I (input only) in position 38 of the DDS form.</p>
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<p>You can use a logical file to secure records in a physical file based on
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the contents of one or more fields in that record. To secure records based
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on the contents of a field, use the select and omit keywords when describing
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the logical file.</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="rbafosecuc.htm" title="These topics describe the actions you can take to secure your database.">Secure a database</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="rbafodrflf.htm" title="For every logical file record format described with data description specifications (DDS), you must specify a record format name and either the PFILE keyword (for simple and multiple format logical files), or the JFILE keyword (for join logical files).">Describe logical file record formats</a></div>
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<div><a href="rbafodeffd.htm" title="You can specify that the fields in logical files are to be input-only, both (input/output), or neither fields.">Describe field use for logical files</a></div>
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<div><a href="rbafosorec.htm" title="The system can select and omit records when using a logical file. This can help you exclude records in a file for processing convenience or for security.">Select and omit records using logical 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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