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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 17:28:19 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 17:28:19 +0000 |
commit | 18657a960e125336f704ea058e25c27bd3900dcb (patch) | |
tree | 17b438b680ed45a996d7b59951e6aa34023783f2 /www/lang_droptable.html | |
parent | Initial commit. (diff) | |
download | sqlite3-18657a960e125336f704ea058e25c27bd3900dcb.tar.xz sqlite3-18657a960e125336f704ea058e25c27bd3900dcb.zip |
Adding upstream version 3.40.1.upstream/3.40.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'www/lang_droptable.html')
-rw-r--r-- | www/lang_droptable.html | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/www/lang_droptable.html b/www/lang_droptable.html new file mode 100644 index 0000000..06cfecf --- /dev/null +++ b/www/lang_droptable.html @@ -0,0 +1,200 @@ +<!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>DROP TABLE</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> +<div class=fancy> +<div class=nosearch> +<div class="fancy_title"> +DROP TABLE +</div> +</div> + + + + +<p><b><a href="syntax/drop-table-stmt.html">drop-table-stmt:</a></b> +<button id='x1713' onclick='hideorshow("x1713","x1714")'>hide</button></p> + <div id='x1714' class='imgcontainer'> + <div style="max-width:758px"><svg xmlns='http://www.w3.org/2000/svg' class="pikchr" viewBox="0 0 758.16 54"> +<circle cx="5" cy="17" r="3.6" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<polygon points="32,17 20,21 20,12" style="fill:rgb(0,0,0)"/> +<path d="M9,17L26,17" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<path d="M47,32L78,32A15 15 0 0 0 93 17A15 15 0 0 0 78 2L47,2A15 15 0 0 0 32 17A15 15 0 0 0 47 32Z" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<text x="63" y="17" text-anchor="middle" fill="rgb(0,0,0)" dominant-baseline="central">DROP</text> +<polygon points="116,17 105,21 105,12" style="fill:rgb(0,0,0)"/> +<path d="M93,17L110,17" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<path d="M131,32L171,32A15 15 0 0 0 186 17A15 15 0 0 0 171 2L131,2A15 15 0 0 0 116 17A15 15 0 0 0 131 32Z" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<text x="151" y="17" text-anchor="middle" fill="rgb(0,0,0)" dominant-baseline="central">TABLE</text> +<polygon points="222,17 210,21 210,12" style="fill:rgb(0,0,0)"/> +<path d="M186,17L216,17" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<path d="M237,32A15 15 0 0 0 252 17A15 15 0 0 0 237 2A15 15 0 0 0 222 17A15 15 0 0 0 237 32Z" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<text x="237" y="17" text-anchor="middle" fill="rgb(0,0,0)" dominant-baseline="central">IF</text> +<polygon points="275,17 264,21 264,12" style="fill:rgb(0,0,0)"/> +<path d="M252,17L269,17" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<path d="M290,32L335,32A15 15 0 0 0 350 17A15 15 0 0 0 335 2L290,2A15 15 0 0 0 275 17A15 15 0 0 0 290 32Z" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<text x="313" y="17" text-anchor="middle" fill="rgb(0,0,0)" dominant-baseline="central">EXISTS</text> +<polygon points="404,17 392,21 392,12" style="fill:rgb(0,0,0)"/> +<path d="M350,17L398,17" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<path d="M419,32L515,32A15 15 0 0 0 531 17A15 15 0 0 0 515 2L419,2A15 15 0 0 0 404 17A15 15 0 0 0 419 32Z" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<text x="467" y="17" text-anchor="middle" fill="rgb(0,0,0)" dominant-baseline="central">schema-name</text> +<polygon points="554,17 542,21 542,12" style="fill:rgb(0,0,0)"/> +<path d="M531,17L548,17" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<path d="M569,32A15 15 0 0 0 584 17A15 15 0 0 0 569 2A15 15 0 0 0 554 17A15 15 0 0 0 569 32Z" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<text x="569" y="17" text-anchor="middle" font-weight="bold" fill="rgb(0,0,0)" dominant-baseline="central">.</text> +<polygon points="620,17 608,21 608,12" style="fill:rgb(0,0,0)"/> +<path d="M584,17L614,17" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<path d="M635,32L710,32A15 15 0 0 0 725 17A15 15 0 0 0 710 2L635,2A15 15 0 0 0 620 17A15 15 0 0 0 635 32Z" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<text x="673" y="17" text-anchor="middle" fill="rgb(0,0,0)" dominant-baseline="central">table-name</text> +<polygon points="748,17 737,21 737,12" style="fill:rgb(0,0,0)"/> +<path d="M725,17L743,17" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<circle cx="752" cy="17" r="3.6" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<polygon points="275,47 264,51 264,43" style="fill:rgb(0,0,0)"/> +<path d="M186,17 L 193,17 Q 201,17 201,32 L 201,32 Q 201,47 216,47 L 254,47 L 269,47" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<path d="M275,47 L 350,47 Q 365,47 365,32 L 365,32 Q 365,17 372,17 L 380,17" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<polygon points="467,47 456,51 456,43" style="fill:rgb(0,0,0)"/> +<path d="M372,17 L 379,17 Q 387,17 387,32 L 387,32 Q 387,47 402,47 L 447,47 L 462,47" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +<path d="M467,47 L 584,47 Q 599,47 599,32 L 599,32 Q 599,17 606,17 L 614,17" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" /> +</svg> +</div> +</div> + + +<p>The DROP TABLE statement removes a table added with the +<a href="lang_createtable.html">CREATE TABLE</a> statement. The name specified is the +table name. The dropped table is completely removed from the database +schema and the disk file. The table can not be recovered. +All indices and triggers +associated with the table are also deleted.</p> + +<p>The optional IF EXISTS clause suppresses the error that would normally +result if the table does not exist.</p> + +<p>If <a href="foreignkeys.html">foreign key constraints</a> are enabled, a DROP TABLE command performs an +implicit <a href="lang_delete.html">DELETE FROM</a> command before removing the +table from the database schema. Any triggers attached to the table are +dropped from the database schema before the implicit DELETE FROM +is executed, so this cannot cause any triggers to fire. By contrast, an +implicit DELETE FROM does cause any configured +<a href="foreignkeys.html#fk_actions">foreign key actions</a> to take place. +If the implicit DELETE FROM executed +as part of a DROP TABLE command violates any immediate foreign key constraints, +an error is returned and the table is not dropped. If +the implicit DELETE FROM causes any +deferred foreign key constraints to be violated, and the violations still +exist when the transaction is committed, an error is returned at the time +of commit. +</p><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_droptable.in?m=0350dfc779ee8c5ee">2020-02-10 20:33:26</a> UTC </small></i></p> + |