62 lines
4.5 KiB
HTML
62 lines
4.5 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="QAQQINI query options file authority requirements" />
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<meta name="abstract" content="QAQQINI is shipped with a *PUBLIC *USE authority. This allows users to view the query options file, but not change it. Because changing the values of the QAQQINI file affect all queries that are run on the system, only the system or database administrator should have *CHANGE authority to the QAQQINI query options file." />
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<meta name="description" content="QAQQINI is shipped with a *PUBLIC *USE authority. This allows users to view the query options file, but not change it. Because changing the values of the QAQQINI file affect all queries that are run on the system, only the system or database administrator should have *CHANGE authority to the QAQQINI query options file." />
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<meta name="DC.Relation" scheme="URI" content="qryoptf.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>QAQQINI query options file authority requirements</title>
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</head>
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<body id="rzajqiniauth"><a name="rzajqiniauth"><!-- --></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">QAQQINI query options file authority requirements</h1>
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<div><p>QAQQINI is shipped with a *PUBLIC *USE authority. This allows users
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to view the query options file, but not change it. Because changing the values
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of the QAQQINI file affect all queries that are run on the system, only the
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system or database administrator should have *CHANGE authority to the QAQQINI
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query options file.</p>
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<div class="section"><p>The query options file, which resides in the library specified
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on the <span class="cmdname">Change Query Attributes (CHGQRYA)</span> CL command QRYOPTLIB
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parameter, is always used by the query optimizer. This is true even if the
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user has no authority to the query options library and file. This provides
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the system administrator with an additional security mechanism.</p>
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</div>
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<div class="section"><p>When the QAQQINI file resides in the library QUSRSYS the query
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options will effect all of the query users on the server. To prevent anyone
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from inserting, deleting, or updating the query options, the system administrator
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should remove update authority from *PUBLIC to the file. This will prevent
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users from changing the data in the file.</p>
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</div>
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<div class="section"><p>When the QAQQINI file resides in a user library and that library
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is specified on the QRYOPTLIB parameter of the <span class="cmdname">Change Query Attributes
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(CHGQRYA)</span> command, the query options will effect all
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of the queries run for that user's job. To prevent the query options from
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being retrieved from a particular library the system administrator can revoke
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authority to the <span class="cmdname">Change Query Attributes (CHGQRYA)</span> CL command.</p>
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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="qryoptf.htm" title="The query options file QAQQINI support provides the ability to dynamically modify or override the environment in which queries are executed through the Change Query Attributes (CHGQRYA) command and the QAQQINI file. The query options file QAQQINI is used to set some attributes used by the database manager.">Control queries dynamically with the query options file QAQQINI</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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