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<!--$Id: dbc_dup.so,v 11.8 2002/08/18 21:17:28 bostic Exp $--> <!--$Id: m4.tcl,v 11.28 2004/12/16 19:13:05 bostic Exp $--> <!--Copyright (c) 1997,2008 Oracle. All rights reserved.--> <!--See the file LICENSE for redistribution information.--> <html> <head> <title>Berkeley DB: db dup</title> <meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> <meta name="keywords" content="embedded,database,programmatic,toolkit,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> <b><i>dbc</i> <b>dup</b></b> </td> <td align=right> <a href="../../db4-devel-4.7.25/api_tcl/api_tcl.html"><img src="../../db4-devel-4.7.25/images/api.gif" alt="API"></a> <a href="../../db4-devel-4.7.25/ref/toc.html"><img src="../../db4-devel-4.7.25/images/ref.gif" alt="Ref"></a></td> </tr></table> <hr size=1 noshade> <tt> <b><pre>dbc dup [-position] </pre></b> <b>Description(db dup)</b> <p>The <i>dbc</i> <b>dup</b> command duplicates the cursor, creates a new cursor that uses the same transaction and locker ID as the original cursor. This is useful when an application is using locking and requires two or more cursors in the same thread of control.</p> <p>The options are as follows:</p> <br> <b>-position</b><ul compact><li>The newly created cursor is initialized to refer to the same position in the database as the original cursor and hold the same locks. If the <b>-position</b> flag is not specified, the created cursor is uninitialized and will behave like a cursor newly created using the <i>db</i> <b>cursor</b> command.</ul> <br> <p>The <i>dbc</i> <b>dup</b> command returns 0 on success, and in the case of error, a Tcl error is thrown.</p> </tt> <table width="100%"><tr><td><br></td><td align=right> <a href="../../db4-devel-4.7.25/api_tcl/api_tcl.html"><img src="../../db4-devel-4.7.25/images/api.gif" alt="API"></a><a href="../../db4-devel-4.7.25/ref/toc.html"><img src="../../db4-devel-4.7.25/images/ref.gif" alt="Ref"></a> </td></tr></table> <p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font> </body> </html>
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