2011-09-13 17:44:24 +00:00
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<title>Chapter 1. Introduction</title>
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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="index.html" title="Berkeley DB Programmer's Reference Guide" />
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<link rel="prev" href="moreinfo.html" title="For More Information" />
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<link rel="next" href="intro_terrain.html" title="Mapping the terrain: theory and practice" />
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<p>Library Version 11.2.5.2</p>
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<table width="100%" summary="Navigation header">
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<tr>
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<th colspan="3" align="center">Chapter 1.
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Introduction
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</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="moreinfo.html">Prev</a> </td>
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<th width="60%" align="center"> </th>
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<td width="20%" align="right"> <a accesskey="n" href="intro_terrain.html">Next</a></td>
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<hr />
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</div>
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<div class="chapter" 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"><a id="intro"></a>Chapter 1.
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Introduction
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</h2>
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</div>
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</div>
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</div>
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<div class="toc">
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<p>
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<b>Table of Contents</b>
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</p>
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<dl>
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<dt>
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<span class="sect1">
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<a href="intro.html#intro_data">An introduction to data management</a>
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</span>
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</dt>
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<dt>
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<span class="sect1">
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<a href="intro_terrain.html">Mapping the terrain: theory and practice</a>
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</span>
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</dt>
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<dd>
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<dl>
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<dt>
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<span class="sect2">
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2011-12-20 00:07:10 +00:00
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<a href="intro_terrain.html#id3929893">Data access and data management</a>
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</span>
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</dt>
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<dt>
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<span class="sect2">
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2011-12-20 00:07:10 +00:00
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<a href="intro_terrain.html#id3930614">Relational databases</a>
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</span>
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</dt>
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<dt>
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<span class="sect2">
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2011-12-20 00:07:10 +00:00
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<a href="intro_terrain.html#id3929904">Object-oriented databases</a>
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</span>
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</dt>
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<dt>
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<span class="sect2">
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2011-12-20 00:07:10 +00:00
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<a href="intro_terrain.html#id3930617">Network databases</a>
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2011-09-13 17:44:24 +00:00
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</span>
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</dt>
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<dt>
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<span class="sect2">
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2011-12-20 00:07:10 +00:00
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<a href="intro_terrain.html#id3929905">Clients and servers</a>
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2011-09-13 17:44:24 +00:00
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</span>
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</dt>
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</dl>
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</dd>
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<dt>
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<span class="sect1">
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<a href="intro_dbis.html">What is Berkeley DB?</a>
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</span>
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</dt>
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<dd>
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<dl>
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<dt>
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<span class="sect2">
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2011-12-20 00:07:10 +00:00
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<a href="intro_dbis.html#id3044327">Data Access Services</a>
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2011-09-13 17:44:24 +00:00
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</span>
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</dt>
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<dt>
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<span class="sect2">
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2011-12-20 00:07:10 +00:00
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<a href="intro_dbis.html#id3044355">Data management services</a>
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2011-09-13 17:44:24 +00:00
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</span>
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</dt>
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<dt>
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<span class="sect2">
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2011-12-20 00:07:10 +00:00
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<a href="intro_dbis.html#id3931121">Design</a>
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2011-09-13 17:44:24 +00:00
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</span>
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</dt>
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</dl>
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</dd>
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<dt>
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<span class="sect1">
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<a href="intro_dbisnot.html">What Berkeley DB is not</a>
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</span>
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</dt>
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<dd>
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<dl>
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<dt>
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<span class="sect2">
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2011-12-20 00:07:10 +00:00
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<a href="intro_dbisnot.html#id3929891">Berkeley DB is not a relational database</a>
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2011-09-13 17:44:24 +00:00
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</span>
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</dt>
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<dt>
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<span class="sect2">
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2011-12-20 00:07:10 +00:00
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<a href="intro_dbisnot.html#id3931365">Berkeley DB is not an object-oriented database</a>
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2011-09-13 17:44:24 +00:00
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</span>
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</dt>
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<dt>
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<span class="sect2">
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2011-12-20 00:07:10 +00:00
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<a href="intro_dbisnot.html#id3931085">Berkeley DB is not a network database</a>
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2011-09-13 17:44:24 +00:00
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</span>
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</dt>
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<dt>
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<span class="sect2">
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2011-12-20 00:07:10 +00:00
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<a href="intro_dbisnot.html#id3930248">Berkeley DB is not a database server</a>
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2011-09-13 17:44:24 +00:00
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</span>
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</dt>
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</dl>
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</dd>
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<dt>
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<span class="sect1">
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<a href="intro_need.html">Do you need Berkeley DB?</a>
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</span>
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</dt>
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<dt>
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<span class="sect1">
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<a href="intro_what.html">What other services does Berkeley DB provide?</a>
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</span>
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</dt>
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<dt>
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<span class="sect1">
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<a href="intro_distrib.html">What does the Berkeley DB distribution include?</a>
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</span>
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</dt>
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<dt>
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<span class="sect1">
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<a href="intro_where.html">Where does Berkeley DB run?</a>
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</span>
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</dt>
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<dt>
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<span class="sect1">
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<a href="intro_products.html">The Berkeley DB products</a>
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</span>
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</dt>
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<dd>
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<dl>
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<dt>
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<span class="sect2">
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2011-12-20 00:07:10 +00:00
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<a href="intro_products.html#id3932075">Berkeley DB Data Store</a>
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2011-09-13 17:44:24 +00:00
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</span>
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</dt>
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<dt>
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<span class="sect2">
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2011-12-20 00:07:10 +00:00
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<a href="intro_products.html#id3044196">Berkeley DB Concurrent Data Store</a>
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2011-09-13 17:44:24 +00:00
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</span>
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</dt>
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<dt>
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<span class="sect2">
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2011-12-20 00:07:10 +00:00
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<a href="intro_products.html#id3044501">Berkeley DB Transactional Data Store</a>
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2011-09-13 17:44:24 +00:00
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</span>
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</dt>
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<dt>
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<span class="sect2">
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2011-12-20 00:07:10 +00:00
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<a href="intro_products.html#id3932096">Berkeley DB High Availability</a>
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2011-09-13 17:44:24 +00:00
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</span>
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</dt>
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</dl>
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</dd>
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</dl>
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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="intro_data"></a>An introduction to data management</h2>
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</div>
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</div>
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</div>
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<p>Cheap, powerful computing and networking have created countless new
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applications that could not have existed a decade ago. The advent of the
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World-Wide Web, and its influence in driving the Internet into homes and
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businesses, is one obvious example. Equally important, though, is the
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shift from large, general-purpose desktop and server computers toward
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smaller, special-purpose devices with built-in processing and
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communications services.</p>
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<p>As computer hardware has spread into virtually every corner of our
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lives, of course, software has followed. Software developers today are
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building applications not just for conventional desktop and server
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environments, but also for handheld computers, home appliances,
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networking hardware, cars and trucks, factory floor automation systems,
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cellphones, and more.</p>
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<p>While these operating environments are diverse, the problems that
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software engineers must solve in them are often strikingly similar. Most
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systems must deal with the outside world, whether that means
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communicating with users or controlling machinery. As a result, most
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need some sort of I/O system. Even a simple, single-function system
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generally needs to handle multiple tasks, and so needs some kind of
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operating system to schedule and manage control threads. Also, many
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computer systems must store and retrieve data to track history, record
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configuration settings, or manage access.</p>
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<p>Data management can be very simple. In some cases, just recording
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configuration in a flat text file is enough. More often, though,
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programs need to store and search a large amount of data, or
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structurally complex data. Database management systems are tools that
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programmers can use to do this work quickly and efficiently using
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off-the-shelf software.</p>
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<p>Of course, database management systems have been around for a long time.
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Data storage is a problem dating back to the earliest days of computing.
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Software developers can choose from hundreds of good,
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commercially-available database systems. The problem is selecting the
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one that best solves the problems that their applications face.</p>
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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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<td width="40%" align="left"><a accesskey="p" href="moreinfo.html">Prev</a> </td>
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<td width="20%" align="center"> </td>
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<td width="40%" align="right"> <a accesskey="n" href="intro_terrain.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">For More Information </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"> Mapping the terrain: theory and practice</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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