<!--$Id: dup.so,v 1.1 2000/05/31 18:53:28 bostic Exp $--> <!--Copyright 1997-2003 by Sleepycat Software, Inc.--> <!--All rights reserved.--> <!--See the file LICENSE for redistribution information.--> <html> <head> <title>Berkeley DB Reference Guide: Release 3.1: identical duplicate data items</title> <meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> <meta name="keywords" content="embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++"> </head> <body bgcolor=white> <table width="100%"><tr valign=top> <td><h3><dl><dt>Berkeley DB Reference Guide:<dd>Upgrading Berkeley DB Applications</dl></h3></td> <td align=right><a href="../upgrade.3.1/put.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../upgrade.3.1/btstat.html"><img src="../../images/next.gif" alt="Next"></a> </td></tr></table> <p> <h3 align=center>Release 3.1: identical duplicate data items</h3> <p>In previous releases of Berkeley DB, it was not an error to store identical duplicate data items, or, for those that just like the way it sounds, duplicate duplicates. However, there were implementation bugs where storing duplicate duplicates could cause database corruption.</p> <p>In this release, applications may store identical duplicate data items as long as the data items are unsorted. It is an error to attempt to store identical duplicate data items when duplicates are being stored in a sorted order. This restriction is expected to be lifted in a future release. See <a href="../../ref/am_conf/dup.html">Duplicate data items</a> for more information.</p> <table width="100%"><tr><td><br></td><td align=right><a href="../upgrade.3.1/put.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../upgrade.3.1/btstat.html"><img src="../../images/next.gif" alt="Next"></a> </td></tr></table> <p><font size=1><a href="../../sleepycat/legal.html">Copyright (c) 1996-2003</a> <a href="http://www.sleepycat.com">Sleepycat Software, Inc.</a> - All rights reserved.</font> </body> </html>
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