1<?xml version="1.0" encoding="UTF-8" standalone="no"?> 2<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 3<html xmlns="http://www.w3.org/1999/xhtml"> 4 <head> 5 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> 6 <title>Aborting a Transaction</title> 7 <link rel="stylesheet" href="gettingStarted.css" type="text/css" /> 8 <meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /> 9 <link rel="start" href="index.html" title="Getting Started with Berkeley DB Transaction Processing" /> 10 <link rel="up" href="usingtxns.html" title="Chapter 3. Transaction Basics" /> 11 <link rel="prev" href="usingtxns.html" title="Chapter 3. Transaction Basics" /> 12 <link rel="next" href="autocommit.html" title="Auto Commit" /> 13 </head> 14 <body> 15 <div class="navheader"> 16 <table width="100%" summary="Navigation header"> 17 <tr> 18 <th colspan="3" align="center">Aborting a Transaction</th> 19 </tr> 20 <tr> 21 <td width="20%" align="left"><a accesskey="p" href="usingtxns.html">Prev</a> </td> 22 <th width="60%" align="center">Chapter 3. Transaction Basics</th> 23 <td width="20%" align="right"> <a accesskey="n" href="autocommit.html">Next</a></td> 24 </tr> 25 </table> 26 <hr /> 27 </div> 28 <div class="sect1" lang="en" xml:lang="en"> 29 <div class="titlepage"> 30 <div> 31 <div> 32 <h2 class="title" style="clear: both"><a id="abortresults"></a>Aborting a Transaction</h2> 33 </div> 34 </div> 35 </div> 36 <p> 37 When you abort a transaction, all database 38 39 modifications performed 40 under the protection of the transaction are discarded, and all 41 locks currently held by the transaction are released. In this event, 42 your data is simply left in the 43 state that it was in before the transaction began performing data 44 modifications. 45 </p> 46 <p> 47 Once you have aborted a transaction, the transaction 48 handle that you used for the transaction is no longer valid. To 49 perform database activities under the control of a new 50 transaction, you must obtain a fresh transactional handle. 51 </p> 52 <p> 53 To abort a transaction, call 54 55 <span><code class="methodname">DbTxn::abort()</code>.</span> 56 57 58 59 </p> 60 </div> 61 <div class="navfooter"> 62 <hr /> 63 <table width="100%" summary="Navigation footer"> 64 <tr> 65 <td width="40%" align="left"><a accesskey="p" href="usingtxns.html">Prev</a> </td> 66 <td width="20%" align="center"> 67 <a accesskey="u" href="usingtxns.html">Up</a> 68 </td> 69 <td width="40%" align="right"> <a accesskey="n" href="autocommit.html">Next</a></td> 70 </tr> 71 <tr> 72 <td width="40%" align="left" valign="top">Chapter 3. Transaction Basics </td> 73 <td width="20%" align="center"> 74 <a accesskey="h" href="index.html">Home</a> 75 </td> 76 <td width="40%" align="right" valign="top"> Auto Commit</td> 77 </tr> 78 </table> 79 </div> 80 </body> 81</html> 82