1<!--$Id: environ.so,v 10.21 2001/04/16 17:11:40 bostic Exp $--> 2<!--Copyright (c) 1997,2008 Oracle. All rights reserved.--> 3<!--See the file LICENSE for redistribution information.--> 4<html> 5<head> 6<title>Berkeley DB Reference Guide: Environment variables</title> 7<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> 8<meta name="keywords" content="embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++"> 9</head> 10<body bgcolor=white> 11<a name="2"><!--meow--></a> 12<table width="100%"><tr valign=top> 13<td><b><dl><dt>Berkeley DB Reference Guide:<dd>Programmer Notes</dl></b></td> 14<td align=right><a href="../program/errorret.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../program/mt.html"><img src="../../images/next.gif" alt="Next"></a> 15</td></tr></table> 16<p align=center><b>Environment variables</b></p> 17<p>The Berkeley DB library uses the following environment variables:</p> 18<br> 19<b>DB_HOME</b><ul compact><li>If the environment variable DB_HOME is set, it is used as part of 20<a href="../../ref/env/naming.html">File Naming</a>. 21Note: For the DB_HOME variable to take effect, either the 22<a href="../../api_c/env_open.html#DB_USE_ENVIRON">DB_USE_ENVIRON</a> or <a href="../../api_c/env_open.html#DB_USE_ENVIRON_ROOT">DB_USE_ENVIRON_ROOT</a> flags must be 23specified to <a href="../../api_c/env_open.html">DB_ENV->open</a>.</ul> 24<b>TMPDIR, TEMP, TMP, TempFolder</b><ul compact><li>The TMPDIR, TEMP, TMP, and TempFolder environment variables are all 25checked as locations in which to create temporary files. See 26<a href="../../api_c/env_set_tmp_dir.html">DB_ENV->set_tmp_dir</a> for more information.</ul> 27<br> 28<table width="100%"><tr><td><br></td><td align=right><a href="../program/errorret.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../program/mt.html"><img src="../../images/next.gif" alt="Next"></a> 29</td></tr></table> 30<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font> 31</body> 32</html> 33