81 lines
6.2 KiB
HTML
81 lines
6.2 KiB
HTML
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Commitment control concepts" />
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<meta name="abstract" content="This topic provides information to help you understand how commitment control works, how it interacts with your system, and how it interacts with other systems in your network." />
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<title>Commitment control concepts</title>
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<body id="rzakjconcepts"><a name="rzakjconcepts"><!-- --></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">Commitment control concepts</h1>
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<div><p>This topic provides information to help you understand how commitment
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control works, how it interacts with your system, and how it interacts with
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other systems in your network.</p>
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</div>
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<div>
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<ul class="ullinks">
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<li class="ulchildlink"><strong><a href="rzakjhowworks.htm">How commitment control works</a></strong><br />
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Commitment control is a function that allows you to define and process a group of changes to resources, such as database files or tables, as a transaction.</li>
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<li class="ulchildlink"><strong><a href="rzakjrollbacks.htm">How commit and rollback operations work</a></strong><br />
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Commit and rollback operations affect changes that are made under commitment control.</li>
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<li class="ulchildlink"><strong><a href="rzakjcommitdef.htm">Commitment definition</a></strong><br />
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You create a commitment definition when you use the Start Commitment
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Control (STRCMTCTL) command to start commitment control on your system. Also, DB2
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Universal Database™ (UDB) for iSeries™ automatically creates a commitment
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definition when the isolation level is other than No Commit.</li>
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<li class="ulchildlink"><strong><a href="rzakjresources.htm">How commitment control works with objects</a></strong><br />
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When you place an object under commitment control, it becomes a committable resource. It is registered with the commitment definition. It participates in each commit operation and rollback operation that occurs for that commitment definition.</li>
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<li class="ulchildlink"><strong><a href="rzakjiasp.htm">Commitment control and independent disk pools</a></strong><br />
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Independent disk pools and independent disk pool groups, can each
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have a separate i5/OS™ SQL
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database. You can use commitment control with these databases. </li>
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<li class="ulchildlink"><strong><a href="rzakjmiscconsid.htm">Considerations and restrictions for commitment control</a></strong><br />
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The topic talks about miscellaneous considerations and restrictions for commitment control.</li>
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<li class="ulchildlink"><strong><a href="rzakjcommitbatch.htm">Commitment control for batch applications</a></strong><br />
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Batch applications might or might not need commitment control. In some cases, a batch application can perform a single function of reading an input file and updating a master file. However, you can use commitment control for this type of application if it is important to start it again after an abnormal end.</li>
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<li class="ulchildlink"><strong><a href="rzakjtwophase.htm">Two-phase commitment control</a></strong><br />
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Two-phase commitment control ensures that committable resources on multiple systems remain synchronized.</li>
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<li class="ulchildlink"><strong><a href="rzakjxatransaction.htm">XA transaction support for commitment control</a></strong><br />
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DB2
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Universal Database™ (UDB) for iSeries™ can participate in X/Open global
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transactions. </li>
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<li class="ulchildlink"><strong><a href="rzakjthreadscoped.htm">SQL server mode and thread-scoped transactions for commitment control</a></strong><br />
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Commitment definitions with job-scoped locks are normally scoped to an activation group.</li>
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</ul>
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<div class="familylinks">
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<div class="parentlink"><strong>Parent topic:</strong> <a href="rzakjcommitkickoff.htm" title="Commitment control is a function that ensures data integrity. It allows you to define and process a group of changes to resources, such as database files or tables, as a transaction.">Commitment control</a></div>
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