1<?xml version="1.0" encoding="UTF-8" standalone="no"?> 2<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 3<html xmlns="http://www.w3.org/1999/xhtml"> 4 <head> 5 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> 6 <title>Release 4.2: DB->del</title> 7 <link rel="stylesheet" href="gettingStarted.css" type="text/css" /> 8 <meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /> 9 <link rel="start" href="index.html" title="Berkeley DB Programmer's Reference Guide" /> 10 <link rel="up" href="upgrade_4_2_toc.html" title="Chapter��39.��Upgrading Berkeley DB 4.1 applications to Berkeley DB 4.2" /> 11 <link rel="prev" href="upgrade_4_2_client.html" title="Release 4.2: DB_CLIENT" /> 12 <link rel="next" href="upgrade_4_2_priority.html" title="Release 4.2: DB->set_cache_priority" /> 13 </head> 14 <body> 15 <div class="navheader"> 16 <table width="100%" summary="Navigation header"> 17 <tr> 18 <th colspan="3" align="center">Release 4.2: DB->del</th> 19 </tr> 20 <tr> 21 <td width="20%" align="left"><a accesskey="p" href="upgrade_4_2_client.html">Prev</a>��</td> 22 <th width="60%" align="center">Chapter��39.��Upgrading Berkeley DB 4.1 applications to Berkeley DB 4.2</th> 23 <td width="20%" align="right">��<a accesskey="n" href="upgrade_4_2_priority.html">Next</a></td> 24 </tr> 25 </table> 26 <hr /> 27 </div> 28 <div class="sect1" lang="en" xml:lang="en"> 29 <div class="titlepage"> 30 <div> 31 <div> 32 <h2 class="title" style="clear: both"><a id="upgrade_4_2_del"></a>Release 4.2: DB->del</h2> 33 </div> 34 </div> 35 </div> 36 <p> 37 In previous releases, the C++ <a href="../api_reference/CXX/dbdel.html" class="olink">Db::del</a> and 38 Java <code class="classname">Db.delete()</code> methods threw exceptions encapsulating the 39 <a class="link" href="program_errorret.html#program_errorret.DB_KEYEMPTY">DB_KEYEMPTY</a> error in some 40 cases when called on Queue and Recno databases. Unfortunately, this was undocumented 41 behavior. 42</p> 43 <p> 44 For consistency with the other Berkeley DB methods that handle 45 <a class="link" href="program_errorret.html#program_errorret.DB_KEYEMPTY">DB_KEYEMPTY</a>, 46 this is no longer the case. Applications calling the 47 <a href="../api_reference/CXX/dbdel.html" class="olink">Db::del</a> and Java 48 <code class="classname">Db.delete()</code> methods on Queue or Recno databases, and 49 handling the 50 <a class="link" href="program_errorret.html#program_errorret.DB_KEYEMPTY">DB_KEYEMPTY</a> exception specially, 51 should be modified to check for a return value of 52 <a class="link" href="program_errorret.html#program_errorret.DB_KEYEMPTY">DB_KEYEMPTY</a> instead. 53</p> 54 </div> 55 <div class="navfooter"> 56 <hr /> 57 <table width="100%" summary="Navigation footer"> 58 <tr> 59 <td width="40%" align="left"><a accesskey="p" href="upgrade_4_2_client.html">Prev</a>��</td> 60 <td width="20%" align="center"> 61 <a accesskey="u" href="upgrade_4_2_toc.html">Up</a> 62 </td> 63 <td width="40%" align="right">��<a accesskey="n" href="upgrade_4_2_priority.html">Next</a></td> 64 </tr> 65 <tr> 66 <td width="40%" align="left" valign="top">Release 4.2: DB_CLIENT��</td> 67 <td width="20%" align="center"> 68 <a accesskey="h" href="index.html">Home</a> 69 </td> 70 <td width="40%" align="right" valign="top">��Release 4.2: DB->set_cache_priority</td> 71 </tr> 72 </table> 73 </div> 74 </body> 75</html> 76