1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
<!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>SQLite Syntax: drop-index-stmt</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>
<h1 align='center'>drop-index-stmt</h1>
<div class='imgcontainer'>
<div style="max-width:761px"><svg xmlns='http://www.w3.org/2000/svg' class="pikchr" viewBox="0 0 761.27 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">INDEX</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="275,17 263,21 263,12" 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="312" 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 0 530 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="553,17 542,21 542,12" style="fill:rgb(0,0,0)"/>
<path d="M530,17L548,17" 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 0 553 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="M635,32L713,32A15 15 0 0 0 728 17A15 15 0 0 0 713 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="674" y="17" text-anchor="middle" fill="rgb(0,0,0)" dominant-baseline="central">index-name</text>
<polygon points="751,17 740,21 740,12" style="fill:rgb(0,0,0)"/>
<path d="M728,17L746,17" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" />
<circle cx="755" cy="17" r="3.6" style="fill:none;stroke-width:2.16;stroke:rgb(0,0,0);" />
<polygon points="275,47 263,51 263,43" 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 446,47 L 461,47" 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><br>
Used by: <a href='./sql-stmt.html'>sql-stmt</a><br></br>
See also: <a href='../lang_dropindex.html'>lang_dropindex.html</a>
</div>
|
