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3.7 KiB
HTML
75 lines
3.7 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<title>DB->del</title>
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<link rel="stylesheet" href="gettingStarted.css" type="text/css" />
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<link rel="start" href="index.html" title="Berkeley DB Upgrade Guide" />
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<link rel="up" href="upgrade_4_2_toc.html" title="Chapter 8. Upgrading Berkeley DB 4.1 applications to Berkeley DB 4.2" />
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<div class="libver">
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<p>Library Version 11.2.5.3</p>
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</div>
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<table width="100%" summary="Navigation header">
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<tr>
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<th colspan="3" align="center">DB->del</th>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="upgrade_4_2_client.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 8. Upgrading Berkeley DB 4.1 applications to Berkeley DB 4.2</th>
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<div class="sect1" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title" style="clear: both"><a id="upgrade_4_2_del"></a>DB->del</h2>
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</div>
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</div>
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</div>
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<p>
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In previous releases, the C++ <a href="../api_reference/CXX/dbdel.html" class="olink">Db::del</a> and
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Java <code class="classname">Db.delete()</code> methods threw exceptions encapsulating the
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<a href="../programmer_reference/program_errorret.html#program_errorret.DB_KEYEMPTY" class="olink">DB_KEYEMPTY</a> error in some
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cases when called on Queue and Recno databases. Unfortunately, this was undocumented
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behavior.
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</p>
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<p>
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For consistency with the other Berkeley DB methods that handle
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<a href="../programmer_reference/program_errorret.html#program_errorret.DB_KEYEMPTY" class="olink">DB_KEYEMPTY</a>, this is no longer the case. Applications calling the
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<a href="../api_reference/CXX/dbdel.html" class="olink">Db::del</a> and Java
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<code class="classname">Db.delete()</code> methods on Queue or Recno databases,
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and handling the <a href="../programmer_reference/program_errorret.html#program_errorret.DB_KEYEMPTY" class="olink">DB_KEYEMPTY</a> exception specially, should be modified
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to check for a return value of <a href="../programmer_reference/program_errorret.html#program_errorret.DB_KEYEMPTY" class="olink">DB_KEYEMPTY</a> instead.
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<a accesskey="u" href="upgrade_4_2_toc.html">Up</a>
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<td width="40%" align="right"> <a accesskey="n" href="upgrade_4_2_priority.html">Next</a></td>
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</tr>
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<tr>
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<td width="40%" align="left" valign="top">DB_CLIENT </td>
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<td width="20%" align="center">
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<a accesskey="h" href="index.html">Home</a>
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</td>
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<td width="40%" align="right" valign="top"> DB->set_cache_priority</td>
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