1<!--$Id: db_del.so,v 11.15 2004/12/16 19:13:04 bostic Exp $--> 2<!--$Id: m4.tcl,v 11.28 2004/12/16 19:13:05 bostic Exp $--> 3<!--Copyright (c) 1997,2008 Oracle. All rights reserved.--> 4<!--See the file LICENSE for redistribution information.--> 5<html> 6<head> 7<title>Berkeley DB: db del</title> 8<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> 9<meta name="keywords" content="embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++"> 10</head> 11<body bgcolor=white> 12<table width="100%"><tr valign=top> 13<td> 14<b><i>db</i> <b>del</b></b> 15</td> 16<td align=right> 17<a href="../api_tcl/api_tcl.html"><img src="../images/api.gif" alt="API"></a> 18<a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a></td> 19</tr></table> 20<hr size=1 noshade> 21<tt> 22<b><pre>db del 23 [-glob] 24 [-txn txnid] 25 key 26</pre></b> 27<b>Description(db del)</b> 28<p>The <i>db</i> <b>del</b> command removes key/data pairs from the database.</p> 29<p>In the presence of duplicate key values, all records associated with the 30designated key will be discarded.</p> 31<p>The options are as follows:</p> 32<br> 33<b>-glob</b><ul compact><li>The specified key is a wildcard pattern, and all keys matching that 34pattern are discarded from the database. The pattern is a simple 35wildcard, any characters after the wildcard character are ignored. 36This option only works on databases using the Btree access method.</ul> 37<b>-txn txnid</b><ul compact><li>If the operation is part of an application-specified transaction, the 38<b>txnid</b> parameter is a transaction handle returned from 39<i>env</i> <b>txn</b>. If no transaction handle is specified, but the 40operation occurs in a transactional 41database, 42the operation will be implicitly transaction protected.</ul> 43<br> 44<p>The <i>db</i> <b>del</b> command returns 0 on success, and in the case of error, a Tcl error 45is thrown.</p> 46</tt> 47<table width="100%"><tr><td><br></td><td align=right> 48<a href="../api_tcl/api_tcl.html"><img src="../images/api.gif" alt="API"></a><a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a> 49</td></tr></table> 50<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font> 51</body> 52</html> 53