<?xml version="1.0" encoding="UTF-8" standalone="no"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> <title>DbSequence::remove()</title> <link rel="stylesheet" href="apiReference.css" type="text/css" /> <meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /> <link rel="start" href="index.html" title="Berkeley DB C++ API Reference" /> <link rel="up" href="seq.html" title="Chapter 12. The DbSequence Handle" /> <link rel="prev" href="seqopen.html" title="DbSequence::open()" /> <link rel="next" href="seqset_cachesize.html" title="DbSequence::set_cachesize()" /> </head> <body> <div xmlns="" class="navheader"> <div class="libver"> <p>Library Version 11.2.5.3</p> </div> <table width="100%" summary="Navigation header"> <tr> <th colspan="3" align="center">DbSequence::remove()</th> </tr> <tr> <td width="20%" align="left"><a accesskey="p" href="seqopen.html">Prev</a> </td> <th width="60%" align="center">Chapter 12. The DbSequence Handle </th> <td width="20%" align="right"> <a accesskey="n" href="seqset_cachesize.html">Next</a></td> </tr> </table> <hr /> </div> <div class="sect1" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h2 class="title" style="clear: both"><a id="seqremove"></a>DbSequence::remove()</h2> </div> </div> </div> <pre class="programlisting">#include <db_cxx.h> int DbSequence::remove(u_int32_t flags);</pre> <p> The <code class="methodname">DbSequence::remove()</code> method removes the sequence from the database. This method should not be called if there are other open handles on this sequence. </p> <p> The <a class="link" href="seq.html" title="Chapter 12. The DbSequence Handle">DbSequence</a> handle may not be accessed again after <code class="methodname">DbSequence::remove()</code> is called, regardless of its return. </p> <p> The <code class="methodname">DbSequence::remove()</code> <span> <span> method either returns a non-zero error value or throws an exception that encapsulates a non-zero error value on failure, and returns 0 on success. </span> </span> </p> <div class="sect2" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h3 class="title"><a id="idp10141712"></a>Parameters</h3> </div> </div> </div> <div class="sect3" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h4 class="title"><a id="idp10153328"></a>txnid</h4> </div> </div> </div> <p> If the operation is part of an application-specified transaction, the <span class="bold"><strong>txnid</strong></span> parameter is a transaction handle returned from <a class="xref" href="txnbegin.html" title="DbEnv::txn_begin()">DbEnv::txn_begin()</a>; if the operation is part of a Berkeley DB Concurrent Data Store group, the <span class="bold"><strong>txnid</strong></span> parameter is a handle returned from <a class="xref" href="envcdsgroup_begin.html" title="DbEnv::cdsgroup_begin()">DbEnv::cdsgroup_begin()</a>; otherwise NULL. If no transaction handle is specified, but the operation occurs in a transactional database, the operation will be implicitly transaction protected. </p> </div> <div class="sect3" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h4 class="title"><a id="idp10111944"></a>flags</h4> </div> </div> </div> <p> The <span class="bold"><strong>flags</strong></span> parameter must be set to 0 or by bitwise inclusively <span class="bold"><strong>OR</strong></span>'ing together one or more of the following values: </p> <div class="itemizedlist"> <ul type="disc"> <li> <p> <code class="literal">DB_TXN_NOSYNC</code> </p> <p> If the operation is implicitly transaction protected (the <span class="bold"><strong>txnid</strong></span> argument is NULL but the operation occurs to a transactional database), do not synchronously flush the log when the transaction commits. </p> </li> </ul> </div> </div> </div> <div class="sect2" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h3 class="title"><a id="idp10159752"></a>Errors</h3> </div> </div> </div> <p> The <code class="methodname">DbSequence::remove()</code> <span> <span> method may fail and throw a <a class="link" href="dbexception.html" title="Chapter 6. The DbException Class">DbException</a> exception, encapsulating one of the following non-zero errors, or return one of the following non-zero errors: </span> </span> </p> <div class="sect3" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h4 class="title"><a id="idp10169336"></a>EINVAL</h4> </div> </div> </div> <p> An invalid flag value or parameter was specified. </p> </div> </div> <div class="sect2" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h3 class="title"><a id="idp10168040"></a>Class</h3> </div> </div> </div> <p> <a class="link" href="seq.html" title="Chapter 12. The DbSequence Handle">DbSequence</a> </p> </div> <div class="sect2" lang="en" xml:lang="en"> <div class="titlepage"> <div> <div> <h3 class="title"><a id="idp10164888"></a>See Also</h3> </div> </div> </div> <p> <a class="xref" href="seq.html#seqlist" title="Sequences and Related Methods">Sequences and Related Methods</a> </p> </div> </div> <div class="navfooter"> <hr /> <table width="100%" summary="Navigation footer"> <tr> <td width="40%" align="left"><a accesskey="p" href="seqopen.html">Prev</a> </td> <td width="20%" align="center"> <a accesskey="u" href="seq.html">Up</a> </td> <td width="40%" align="right"> <a accesskey="n" href="seqset_cachesize.html">Next</a></td> </tr> <tr> <td width="40%" align="left" valign="top">DbSequence::open() </td> <td width="20%" align="center"> <a accesskey="h" href="index.html">Home</a> </td> <td width="40%" align="right" valign="top"> DbSequence::set_cachesize()</td> </tr> </table> </div> </body> </html>