Gitiles
Code Review Sign In
www.giggi.me / code-igniter-v3-giggi / 3bacd025c0e8e922fd9f862f5c74e643f2f28f17 / . / user_guide / database / table_data.html
blob: 07f7351cff03d7baaceb092641ad33ead9c2d7ed [file] [log] [blame]
Derek Allard2067d1a2008-11-13 22:59:24 +0000[diff] [blame]1<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
2<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
3<head>
4
5<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
6<title>Table Data : CodeIgniter User Guide</title>
7
8<style type='text/css' media='all'>@import url('../userguide.css');</style>
9<link rel='stylesheet' type='text/css' media='all' href='../userguide.css' />
10
11<script type="text/javascript" src="../nav/nav.js"></script>
12<script type="text/javascript" src="../nav/prototype.lite.js"></script>
13<script type="text/javascript" src="../nav/moo.fx.js"></script>
14<script type="text/javascript" src="../nav/user_guide_menu.js"></script>
15
16<meta http-equiv='expires' content='-1' />
17<meta http-equiv= 'pragma' content='no-cache' />
18<meta name='robots' content='all' />
19<meta name='author' content='ExpressionEngine Dev Team' />
20<meta name='description' content='CodeIgniter User Guide' />
21
22</head>
23<body>
24
25<!-- START NAVIGATION -->
26<div id="nav"><div id="nav_inner"><script type="text/javascript">create_menu('../');</script></div></div>
27<div id="nav2"><a name="top"></a><a href="javascript:void(0);" onclick="myHeight.toggle();"><img src="../images/nav_toggle_darker.jpg" width="154" height="43" border="0" title="Toggle Table of Contents" alt="Toggle Table of Contents" /></a></div>
28<div id="masthead">
29<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
30<tr>
Derek Jones733310d2009-02-11 01:13:43 +0000[diff] [blame]31<td><h1>CodeIgniter User Guide Version 1.7.1</h1></td>
Derek Allard2067d1a2008-11-13 22:59:24 +0000[diff] [blame]32<td id="breadcrumb_right"><a href="../toc.html">Table of Contents Page</a></td>
33</tr>
34</table>
35</div>
36<!-- END NAVIGATION -->
37
38
39<!-- START BREADCRUMB -->
40<table cellpadding="0" cellspacing="0" border="0" style="width:100%">
41<tr>
42<td id="breadcrumb">
43<a href="http://codeigniter.com/">CodeIgniter Home</a> &nbsp;&#8250;&nbsp;
44<a href="../index.html">User Guide Home</a> &nbsp;&#8250;&nbsp;
45<a href="index.html">Database Library</a> &nbsp;&#8250;&nbsp;
46Table Data
47</td>
48<td id="searchbox"><form method="get" action="http://www.google.com/search"><input type="hidden" name="as_sitesearch" id="as_sitesearch" value="codeigniter.com/user_guide/" />Search User Guide&nbsp; <input type="text" class="input" style="width:200px;" name="q" id="q" size="31" maxlength="255" value="" />&nbsp;<input type="submit" class="submit" name="sa" value="Go" /></form></td>
49</tr>
50</table>
51<!-- END BREADCRUMB -->
52
53
54<br clear="all" />
55
56
57<!-- START CONTENT -->
58<div id="content">
59
60
61
62<h1>Table Data</h1>
63
64<p>These functions let you fetch table information.</p>
65
66<h2>$this->db->list_tables();</h2>
67
68<p>Returns an array containing the names of all the tables in the database you are currently connected to. Example:</p>
69
70<code>$tables = $this->db->list_tables();<br />
71<br />
72foreach ($tables as $table)<br />
73{<br />
74&nbsp;&nbsp; echo $table;<br />
75}
76</code>
77
78
79<h2>$this->db->table_exists();</h2>
80
81<p>Sometimes it's helpful to know whether a particular table exists before running an operation on it.
82Returns a boolean TRUE/FALSE. Usage example:</p>
83
84<code>
85if ($this->db->table_exists('table_name'))<br />
86{<br />
87&nbsp;&nbsp; // some code...<br />
88}
89</code>
90
91<p>Note: Replace <em>table_name</em> with the name of the table you are looking for.</p>
92
93
94
95
96
97</div>
98<!-- END CONTENT -->
99
100
101<div id="footer">
102<p>
103Previous Topic:&nbsp;&nbsp;<a href="transactions.html"> Transactions</a>
104&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
105<a href="#top">Top of Page</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
106<a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
107Next Topic:&nbsp;&nbsp;<a href="fields.html"> Field Metadata</a>
108</p>
109<p><a href="http://codeigniter.com">CodeIgniter</a> &nbsp;&middot;&nbsp; Copyright &#169; 2006-2008 &nbsp;&middot;&nbsp; <a href="http://ellislab.com/">Ellislab, Inc.</a></p>
110</div>
111
112</body>
Derek Allard39b622d2008-01-16 21:10:09 +0000[diff] [blame]113</html>