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>DB->get_partition_keys()</title> 7 <link rel="stylesheet" href="apiReference.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 C API Reference" /> 10 <link rel="up" href="db.html" title="Chapter��2.�� The DB Handle" /> 11 <link rel="prev" href="dbget_partition_dirs.html" title="DB->get_partition_dirs()" /> 12 <link rel="next" href="dbget_pagesize.html" title="DB->get_pagesize()" /> 13 </head> 14 <body> 15 <div class="navheader"> 16 <table width="100%" summary="Navigation header"> 17 <tr> 18 <th colspan="3" align="center">DB->get_partition_keys()</th> 19 </tr> 20 <tr> 21 <td width="20%" align="left"><a accesskey="p" href="dbget_partition_dirs.html">Prev</a>��</td> 22 <th width="60%" align="center">Chapter��2.�� 23 The DB Handle 24 </th> 25 <td width="20%" align="right">��<a accesskey="n" href="dbget_pagesize.html">Next</a></td> 26 </tr> 27 </table> 28 <hr /> 29 </div> 30 <div class="sect1" lang="en" xml:lang="en"> 31 <div class="titlepage"> 32 <div> 33 <div> 34 <h2 class="title" style="clear: both"><a id="dbget_partition_keys"></a>DB->get_partition_keys()</h2> 35 </div> 36 </div> 37 </div> 38 <pre class="programlisting">#include <db.h> 39 40int 41DB->get_partition_keys(DB *db, u_int32_t *partsp, DBT *keysp); </pre> 42 <p> 43 The <code class="methodname">DB->get_partition_keys()</code> method returns the partitioning information as 44 set by the <a class="xref" href="dbset_partition.html" title="DB->set_partition()">DB->set_partition()</a> method. 45 </p> 46 <p> 47 The <code class="methodname">DB->get_partition_keys()</code> method may be called at any time during the life 48 of the application. 49 </p> 50 <p> 51 The <code class="methodname">DB->get_partition_keys()</code> <span> 52 <span> 53 method returns a non-zero error value on failure and 0 on success. 54 </span> 55 56 </span> 57 </p> 58 <div class="sect2" lang="en" xml:lang="en"> 59 <div class="titlepage"> 60 <div> 61 <div> 62 <h3 class="title"><a id="id1636547"></a>Parameters</h3> 63 </div> 64 </div> 65 </div> 66 <div class="sect3" lang="en" xml:lang="en"> 67 <div class="titlepage"> 68 <div> 69 <div> 70 <h4 class="title"><a id="id1637357"></a>partsp</h4> 71 </div> 72 </div> 73 </div> 74 <p> 75 The 76 <code class="methodname">DB->get_partition_keys()</code> 77 method returns number of partitions in the 78 <span class="bold"><strong>partsp</strong></span> 79 parameter. 80 </p> 81 </div> 82 <div class="sect3" lang="en" xml:lang="en"> 83 <div class="titlepage"> 84 <div> 85 <div> 86 <h4 class="title"><a id="id1637634"></a>keysp</h4> 87 </div> 88 </div> 89 </div> 90 <p> 91 The <span class="bold"><strong>keysp</strong></span> parameter will be set to the array of partitioning keys. 92 </p> 93 </div> 94 </div> 95 <div class="sect2" lang="en" xml:lang="en"> 96 <div class="titlepage"> 97 <div> 98 <div> 99 <h3 class="title"><a id="id1637537"></a>Class</h3> 100 </div> 101 </div> 102 </div> 103 <p> 104 <a class="link" href="db.html" title="Chapter��2.�� The DB Handle">DB</a> 105 </p> 106 </div> 107 <div class="sect2" lang="en" xml:lang="en"> 108 <div class="titlepage"> 109 <div> 110 <div> 111 <h3 class="title"><a id="id1637493"></a>See Also</h3> 112 </div> 113 </div> 114 </div> 115 <p> 116 <a class="xref" href="db.html#dblist" title="Database and Related Methods">Database and Related Methods</a>, 117 <a class="xref" href="dbset_partition.html" title="DB->set_partition()">DB->set_partition()</a> 118 </p> 119 </div> 120 </div> 121 <div class="navfooter"> 122 <hr /> 123 <table width="100%" summary="Navigation footer"> 124 <tr> 125 <td width="40%" align="left"><a accesskey="p" href="dbget_partition_dirs.html">Prev</a>��</td> 126 <td width="20%" align="center"> 127 <a accesskey="u" href="db.html">Up</a> 128 </td> 129 <td width="40%" align="right">��<a accesskey="n" href="dbget_pagesize.html">Next</a></td> 130 </tr> 131 <tr> 132 <td width="40%" align="left" valign="top">DB->get_partition_dirs()��</td> 133 <td width="20%" align="center"> 134 <a accesskey="h" href="index.html">Home</a> 135 </td> 136 <td width="40%" align="right" valign="top">��DB->get_pagesize()</td> 137 </tr> 138 </table> 139 </div> 140 </body> 141</html> 142