55 lines
3.3 KiB
HTML
55 lines
3.3 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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<meta name="DC.Type" content="reference" />
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<meta name="DC.Title" content="Commit operations in multithreaded programs" />
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<meta name="abstract" content="Database transactions in i5/OS are scoped to the job or the activation group." />
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<meta name="description" content="Database transactions in i5/OS are scoped to the job or the activation group." />
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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="./ic.css" />
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<title>Commit operations in multithreaded programs</title>
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</head>
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<body id="rzahwmit-mitco"><a name="rzahwmit-mitco"><!-- --></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">Commit operations in multithreaded programs</h1>
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<div><p>Database transactions in <span class="keyword">i5/OS™</span> are
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scoped to the job or the activation group.</p>
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<div class="section"><p>If your multithreaded application is working on multiple database
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transactions in multiple threads simultaneously, it is possible that a commit
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operation in one thread also commits activity done by another thread.</p>
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</div>
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<div class="section"><p>For example, an application has a thread that is working on a
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database transaction for client1 and another thread working on a database
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transaction for client2. The thread that is processing for client1 completes
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its processing and commits the changes. This commit operation also commits
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all the changes made for client2. Your application must be aware of the in-flight
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transactions that are in progress.</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="rzahwcomco.htm" title="Several programming errors often occur when writing multithreaded applications.">Common multithreaded programming errors</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="rzahwdbcco.htm" title="You should consider these items when using databases in multithreaded programs.">Database considerations for multithreaded programming</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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