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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 14:07:11 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-13 14:07:11 +0000 |
commit | 63847496f14c813a5d80efd5b7de0f1294ffe1e3 (patch) | |
tree | 01c7571c7c762ceee70638549a99834fdd7c411b /www/lang_naming.html | |
parent | Initial commit. (diff) | |
download | sqlite3-63847496f14c813a5d80efd5b7de0f1294ffe1e3.tar.xz sqlite3-63847496f14c813a5d80efd5b7de0f1294ffe1e3.zip |
Adding upstream version 3.45.1.upstream/3.45.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'www/lang_naming.html')
-rw-r--r-- | www/lang_naming.html | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/www/lang_naming.html b/www/lang_naming.html new file mode 100644 index 0000000..f60c0d6 --- /dev/null +++ b/www/lang_naming.html @@ -0,0 +1,166 @@ +<!DOCTYPE html> +<html><head> +<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>Database Object Name Resolution</title> +<!-- path= --> +</head> +<body> +<div class=nosearch> +<a href="index.html"> +<img class="logo" src="images/sqlite370_banner.gif" alt="SQLite" border="0"> +</a> +<div><!-- IE hack to prevent disappearing logo --></div> +<div class="tagline desktoponly"> +Small. Fast. Reliable.<br>Choose any three. +</div> +<div class="menu mainmenu"> +<ul> +<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> +</ul> +</div> +<div class="menu submenu" id="submenu"> +<ul> +<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> +</ul> +</div> +<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> +</select> +<input type="text" name="q" id="searchbox" value=""> +<input type="submit" value="Go"> +</form> +</div> +</div> +<script> +function toggle_div(nm) { +var w = document.getElementById(nm); +if( w.style.display=="block" ){ +w.style.display = "none"; +}else{ +w.style.display = "block"; +} +} +function toggle_search() { +var w = document.getElementById("searchmenu"); +if( w.style.display=="block" ){ +w.style.display = "none"; +} else { +w.style.display = "block"; +setTimeout(function(){ +document.getElementById("searchbox").focus() +}, 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 || !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( x.style.display!='none' ){ +x.style.display = 'none'; +b.innerHTML='show'; +}else{ +x.style.display = ''; +b.innerHTML='hide'; +} +return false; +} +var antiRobot = 0; +function antiRobotGo(){ +if( antiRobot!=3 ) return; +antiRobot = 7; +var j = document.getElementById("mtimelink"); +if(j && j.hasAttribute("data-href")) j.href=j.getAttribute("data-href"); +} +function antiRobotDefense(){ +document.body.onmousedown=function(){ +antiRobot |= 2; +antiRobotGo(); +document.body.onmousedown=null; +} +document.body.onmousemove=function(){ +antiRobot |= 2; +antiRobotGo(); +document.body.onmousemove=null; +} +setTimeout(function(){ +antiRobot |= 1; +antiRobotGo(); +}, 100) +antiRobotGo(); +} +antiRobotDefense(); +</script> + + + +<p> + In SQLite, a database object (a table, index, trigger or view) is identified + by the name of the object and the name of the database that it resides in. + Database objects may reside in the main database, the temp database, or in + an <a href="lang_attach.html">attached database</a>. + +<p> + The syntax of the <a href="lang_droptable.html">DROP TABLE</a>, <a href="lang_dropindex.html">DROP INDEX</a>, <a href="lang_dropview.html">DROP VIEW</a>, <a href="lang_droptrigger.html">DROP TRIGGER</a>, + <a href="lang_reindex.html">REINDEX</a>, <a href="lang_altertable.html">ALTER TABLE</a> and many other commands all permit the user to + specify a database object either by its name alone, or by a combination of + its name and the name of its database. If no database is specified as part + of the object reference, then SQLite searches the main, temp and all attached + databases for an object with a matching name. The temp database is searched + first, followed by the main database, followed all attached databases in the + order that they were attached. The reference resolves to the first match + found. For example: + +<pre> + /* Add a table named 't1' to the temp, main and an attached database */ + ATTACH 'file.db' AS aux; + CREATE TABLE t1(x, y); + CREATE TEMP TABLE t1(x, y); + CREATE TABLE aux.t1(x, y); + + DROP TABLE t1; /* Drop table in temp database */ + DROP TABLE t1; /* Drop table in main database */ + DROP TABLE t1; /* Drop table in aux database */ +</pre> + +<p> + If a schema name is specified as part of an object reference, it must be + either "main", or "temp" or the schema-name of an attached database. + Like other SQL identifiers, schema names are case-insensitive. + If a schema name is specified, then only that one schema is searched for + the named object. + +<p> + Most object references may only resolve to a specific type of object (for + example a reference that is part of a DROP TABLE statement may only resolve + to a table object, not an index, trigger or view). However in some contexts + (e.g. <a href="lang_reindex.html">REINDEX</a>) an object reference may be resolve to more than one type + of object. When searching database schemas for a named object, objects of + types that cannot be used in the context of the reference are always + ignored. +<p align="center"><small><i>This page last modified on <a href="https://sqlite.org/docsrc/honeypot" id="mtimelink" data-href="https://sqlite.org/docsrc/finfo/pages/lang_naming.in?m=eec821ac86">2022-01-08 05:02:57</a> UTC </small></i></p> + |