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<! "@(#)compatible.so 10.16 (Sleepycat) 11/2/98">
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<title>Berkeley DB Reference Guide: Programmer Notes</title>
<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit.">
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<h3>Berkeley DB Reference Guide: Programmer Notes</h3>
<p>
<h1 align=center>Compatibility with historic interfaces</h1>
<p>
The Berkeley DB version 2 library provides backward compatible interfaces
for the historic UNIX <a href="../../api_c/historic/dbm.html">dbm</a>, <a href="../../api_c/historic/dbm.html">ndbm</a> and <a href="../../api_c/historic/hsearch.html">hsearch</a>
interfaces.
It also provides a backward compatible interface for the historic
Berkeley DB 1.85 release.
<p>
<b>
Berkeley DB version 2 does not provide database compatibility for any of the
above interfaces, and existing databases must be converted manually.</b>
To convert existing databases from the Berkeley DB 1.85 format to the Berkeley DB
version 2 format, review the <a href="../../utility/db_dump.html">db_dump185</a> and <a href="../../utility/db_load.html">db_load</a>
information. No utilities are provided to convert UNIX <a href="../../api_c/historic/dbm.html">dbm</a>,
<a href="../../api_c/historic/dbm.html">ndbm</a> or <a href="../../api_c/historic/hsearch.html">hsearch</a> databases.
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