59 lines
3.6 KiB
HTML
59 lines
3.6 KiB
HTML
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<meta name="DC.Type" content="concept" />
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<meta name="DC.Title" content="Commit or roll back in a DB2 UDB CLI application" />
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<meta name="DC.subject" content="commit, rollback, transaction management, SQLTransact, function, overview" />
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<title>Commit or roll back in a DB2 UDB CLI application</title>
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</head>
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<body id="rzadpcommitrollback"><a name="rzadpcommitrollback"><!-- --></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 or roll back in a DB2 UDB CLI application</h1>
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<div><p>The last step is to either commit or roll back the <em>transaction</em>,
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using <samp class="codeph">SQLTransact()</samp>.</p>
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<p>A transaction is a recoverable unit of work, or a group of SQL statements
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that can be treated as one atomic operation. This means that all the operations
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within the group are to be completed (committed) or undone (rolled back),
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as if they were a single operation.</p>
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<p>When using DB2<sup>®</sup> UDB
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CLI, transactions are started implicitly with the first access to the database
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using <samp class="codeph">SQLPrepare()</samp>, <samp class="codeph">SQLExecDirect()</samp> or <samp class="codeph">SQLGetTypeInfo()</samp>.
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The transaction ends when you use <samp class="codeph">SQLTransact()</samp> to either
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roll back or commit the transaction. This means that any SQL statements processed
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between these are treated as one unit of work.</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="rzadpwhentrans.htm">When to call SQLTransact() in a DB2 UDB CLI application</a></strong><br />
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</li>
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<li class="ulchildlink"><strong><a href="rzadpefftrans.htm">Effects of calling SQLTransact() in a DB2 UDB CLI application</a></strong><br />
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</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="rzadphdptran.htm" title="This topic shows a typical order of function calls in a DB2 UDB CLI application.">Transaction processing task in a DB2 UDB CLI application</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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