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47 lines
2 KiB
HTML
47 lines
2 KiB
HTML
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<!--$Id: dbc_dup.so,v 11.4 1999/12/20 08:52:35 bostic Exp $-->
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<!--$Id: m4.tcl,v 11.17 2000/04/24 17:31:11 sue Exp $-->
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<!--Copyright 1997, 1998, 1999, 2000 by Sleepycat Software, Inc.-->
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<!--All rights reserved.-->
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<html>
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<head>
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<title>Berkeley DB: db dup</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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</head>
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<body bgcolor=white>
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<a name="2"><!--meow--></a>
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<table><tr valign=top>
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<td>
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<h1><i>dbc</i> <b>dup</b></h1>
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</td>
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<td width="1%">
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<a href="../api_tcl/tcl_index.html"><img src="../images/api.gif" alt="API"></a><a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a>
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</td></tr></table>
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<hr size=1 noshade>
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<tt>
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<h3><pre>dbc dup
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[-position]
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</pre></h3>
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<h1>Description</h1>
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<p>The <i>dbc</i> <b>dup</b> command duplicates the cursor, creates a new cursor
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that uses the same transaction and locker ID as the original cursor. This
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is useful when an application is using locking and requires two or more
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cursors in the same thread of control.
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<p>The options are as follows:
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<p><dl compact>
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<p><dt>-position<dd>The newly created cursor is initialized to reference the same position in
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the database as the original cursor and hold the same locks. If the
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<b>-position</b> flag is not specified, then the created cursor is
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uninitialized and will behave like a cursor newly created using the
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<i>db</i> <b>cursor</b> command.
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</dl>
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<p>The <i>dbc</i> <b>dup</b> command returns 0 on success, and in the case of error, a Tcl error
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is thrown.
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</tt>
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<table><tr><td><br></td><td width="1%">
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<a href="../api_tcl/tcl_index.html"><img src="../images/api.gif" alt="API"></a><a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a>
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</td></tr></table>
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<p><font size=1><a href="http://www.sleepycat.com">Copyright Sleepycat Software</a></font>
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</body>
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</html>
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