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Import BSDDB 4.7.25 (as of svn r89086)

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Zachary Ware
2017-09-04 13:40:25 -05:00
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<!--$Id: txn_abort.html 63573 2008-05-23 21:43:21Z trent.nelson $-->
<!--$Id: txn_abort.html 63573 2008-05-23 21:43:21Z trent.nelson $-->
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<title>Berkeley DB: txn abort</title>
<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit.">
<meta name="keywords" content="embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++">
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<td>
<b><i>txn</i> <b>abort</b></b>
</td>
<td align=right>
<a href="../api_tcl/api_tcl.html"><img src="../images/api.gif" alt="API"></a>
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<tt>
<b><pre>txn abort
</pre></b>
<b>Description(txn abort)</b>
<p>The <i>txn</i> <b>abort</b> command causes an abnormal termination of the
transaction.</p>
<p>The log is played backward, and any necessary recovery operations are
performed. After recovery is completed, all locks held by the
transaction are acquired by the parent transaction in the case of a
nested transaction, or released in the case of a non-nested transaction.
As is the case for <i>txn</i> <b>commit</b>, applications that require strict
two-phase locking should not explicitly release any locks.</p>
<p>In the case of nested transactions, aborting the parent transaction
causes all children of that transaction to be aborted.</p>
<p>After <i>txn</i> <b>abort</b> has been called, regardless of its return, the
<b>txn</b> handle may not be accessed again.</p>
<p>The <i>txn</i> <b>abort</b> command returns 0 on success, and in the case of error, a Tcl error
is thrown.</p>
</tt>
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<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font>
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