Artifact Content
Not logged in

Artifact 1cc6016426eb71c6005176a0cf8cd5355e71072b:

<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link href="sqlite.css" rel="stylesheet">
<title>SQLite Query Language: REINDEX</title>
<!-- path= -->
<div class=nosearch>
<a href="index.html">
<img class="logo" src="images/sqlite370_banner.gif" alt="SQLite" border="0">
<div><!-- IE hack to prevent disappearing logo --></div>
<div class="tagline desktoponly">
Small. Fast. Reliable.<br>Choose any three.
<div class="menu mainmenu">
<li><a href="index.html">Home</a>
<li class='mobileonly'><a href="javascript:void(0)" onclick='toggle_div("submenu")'>Menu</a>
<li class='wideonly'><a href='about.html'>About</a>
<li class='desktoponly'><a href="docs.html">Documentation</a>
<li class='desktoponly'><a href="download.html">Download</a>
<li class='wideonly'><a href='copyright.html'>License</a>
<li class='desktoponly'><a href="support.html">Support</a>
<li class='desktoponly'><a href="prosupport.html">Purchase</a>
<li class='search' id='search_menubutton'>
<a href="javascript:void(0)" onclick='toggle_search()'>Search</a>
<div class="menu submenu" id="submenu">
<li><a href='about.html'>About</a>
<li><a href='docs.html'>Documentation</a>
<li><a href='download.html'>Download</a>
<li><a href='support.html'>Support</a>
<li><a href='prosupport.html'>Purchase</a>
<div class="searchmenu" id="searchmenu">
<form method="GET" action="search">
<select name="s" id="searchtype">
<option value="d">Search Documentation</option>
<option value="c">Search Changelog</option>
<input type="text" name="q" id="searchbox" value="">
<input type="submit" value="Go">
function toggle_div(nm) {
var w = document.getElementById(nm);
if("block" ){ = "none";
}else{ = "block";
function toggle_search() {
var w = document.getElementById("searchmenu");
if("block" ){ = "none";
} else { = "block";
}, 30);
function div_off(nm){document.getElementById(nm).style.display="none";}
window.onbeforeunload = function(e){div_off("submenu");}
/* Disable the Search feature if we are not operating from CGI, since */
/* Search is accomplished using CGI and will not work without it. */
if( !location.origin.match || !location.origin.match(/http/) ){
document.getElementById("search_menubutton").style.display = "none";
/* Used by the Hide/Show button beside syntax diagrams, to toggle the */
function hideorshow(btn,obj){
var x = document.getElementById(obj);
var b = document.getElementById(btn);
if(!='none' ){ = 'none';
}else{ = '';
return false;
<div class=nosearch><h1 align="center">SQL As Understood By SQLite</h1><p><a href="lang.html">[Top]</a></p><h2>REINDEX</h2></div><p><b><a href="syntax/reindex-stmt.html">reindex-stmt:</a></b>
<button id='x1143' onclick='hideorshow("x1143","x1144")'>hide</button></p>
 <div id='x1144' class='imgcontainer'>
 <img alt="syntax diagram reindex-stmt" src="images/syntax/reindex-stmt.gif" />

<p>The REINDEX command is used to delete and recreate indices from scratch.
This is useful when the definition of a collation sequence has changed.

<p>If the REINDEX keyword is not followed by a collation-sequence or database 
object identifier, then all indices in all attached databases are rebuilt.

<p>If the REINDEX keyword is followed by a collation-sequence name, then
all indices in all attached databases that use the named collation sequences
are recreated. 

<p>Or, if the argument attached to the REINDEX identifies a specific 
database table, then all indices attached to the database table are rebuilt. 
If it identifies a specific database index, then just that index is recreated.

<p>For a command of the form "REINDEX <i>name</i>", a match
against <span class='yyterm'>collation-name</span> takes precedence over a match
against <span class='yyterm'>index-name</span> or <span class='yyterm'>table-name</span>.
This ambiguity in the syntax may be avoided by always specifying a
<span class='yyterm'>schema-name</span> when reindexing a specific table or index.