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<title>Berkeley DB Reference Guide: Release 3.1: DB_ENV->open, DB_ENV->remove</title>
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<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit.">
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<meta name="keywords" content="embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,java,C,C++">
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<table width="100%"><tr valign=top>
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<td><h3><dl><dt>Berkeley DB Reference Guide:<dd>Upgrading Berkeley DB Applications</dl></h3></td>
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<td align=right><a href="../../ref/upgrade.3.1/intro.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../../reftoc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../../ref/upgrade.3.1/set_tx_recover.html"><img src="../../images/next.gif" alt="Next"></a>
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<h1 align=center>Release 3.1: DB_ENV->open, DB_ENV->remove</h1>
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<p>In the Berkeley DB 3.1 release, the <b>config</b> argument to the
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<a href="../../api_c/env_open.html">DB_ENV->open</a>, <a href="../../api_c/env_remove.html">DB_ENV->remove</a> methods has been removed,
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replaced by additional methods on the DB_ENV handle. If your
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application calls <a href="../../api_c/env_open.html">DB_ENV->open</a> or <a href="../../api_c/env_remove.html">DB_ENV->remove</a> with a NULL
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<b>config</b> argument, find those functions and remove the config
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argument from the call. If your application has non-NULL <b>config</b>
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argument, the strings values in that argument are replaced with calls to
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DB_ENV methods as follows:
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<p><table border=1 align=center>
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<tr><th>Previous config string</th><th>Berkeley DB 3.1 version method</th></tr>
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<tr><td>DB_DATA_DIR</td><td><a href="../../api_c/env_set_data_dir.html">DB_ENV->set_data_dir</a></td></tr>
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<tr><td>DB_LOG_DIR</td><td><a href="../../api_c/env_set_lg_dir.html">DB_ENV->set_lg_dir</a></td></tr>
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<tr><td>DB_TMP_DIR</td><td><a href="../../api_c/env_set_tmp_dir.html">DB_ENV->set_tmp_dir</a></td></tr>
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<table width="100%"><tr><td><br></td><td align=right><a href="../../ref/upgrade.3.1/intro.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../../reftoc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../../ref/upgrade.3.1/set_tx_recover.html"><img src="../../images/next.gif" alt="Next"></a>
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