mirror of
https://github.com/yasuhirokimura/db18
synced 2026-06-08 18:29:23 +00:00
Yasuhiro KIMURA
84 lines
3.2 KiB
HTML
84 lines
3.2 KiB
HTML
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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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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<html xmlns="http://www.w3.org/1999/xhtml">
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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>Database statistics</title>
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<link rel="stylesheet" href="gettingStarted.css" type="text/css" />
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<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
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<link rel="start" href="index.html" title="Berkeley DB Programmer's Reference Guide" />
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<link rel="up" href="am.html" title="Chapter 3. Access Method Operations" />
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<link rel="prev" href="am_delete.html" title="Deleting records" />
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<link rel="next" href="am_truncate.html" title="Database truncation" />
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</head>
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<body>
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<div xmlns="" class="navheader">
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<div class="libver">
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<p>Library Version 18.1.40</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">Database statistics</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="am_delete.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 3. Access Method Operations </th>
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<td width="20%" align="right"> <a accesskey="n" href="am_truncate.html">Next</a></td>
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</tr>
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</table>
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<hr />
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</div>
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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="am_stat"></a>Database statistics</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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The <a href="../api_reference/C/dbstat.html" class="olink">DB->stat()</a> method returns a set of statistics about the
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underlying database, for example, the number of key/data pairs
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in the database, how the database was originally configured,
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and so on.
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</p>
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<p>
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There is a flag you can set to avoid time-consuming
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operations:
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</p>
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<div class="variablelist">
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<dl>
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<dt>
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<span class="term">
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<a href="../api_reference/C/dbstat.html#stat_DB_FAST_STAT" class="olink">DB_FAST_STAT</a>
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</span>
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</dt>
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<dd>
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Return only information that can be acquired
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without traversing the entire database.
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</dd>
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</dl>
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</div>
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</div>
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<div class="navfooter">
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<hr />
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<table width="100%" summary="Navigation footer">
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<tr>
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<td width="40%" align="left"><a accesskey="p" href="am_delete.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="am.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="am_truncate.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">Deleting records </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"> Database truncation</td>
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</tr>
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</table>
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</div>
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</body>
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</html>
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