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Import BSDDB 4.7.25 (as of svn r89086)

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Zachary Ware
2017-09-04 13:40:25 -05:00
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<!--$Id: dbc_dup.html 63573 2008-05-23 21:43:21Z trent.nelson $-->
<!--$Id: dbc_dup.html 63573 2008-05-23 21:43:21Z trent.nelson $-->
<!--Copyright (c) 1997,2008 Oracle. All rights reserved.-->
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<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="../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></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="../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>
</td></tr></table>
<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font>
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