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
168
169
170
171
172
173
174
175
176
177
178
179
|
<!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>Constants Passed To The Conflict Handler</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>
<a href="../session/intro.html"><h2>Session Module C Interface</h2></a><h2>Constants Passed To The Conflict Handler</h2><blockquote><pre>#define SQLITE_CHANGESET_DATA 1
#define SQLITE_CHANGESET_NOTFOUND 2
#define SQLITE_CHANGESET_CONFLICT 3
#define SQLITE_CHANGESET_CONSTRAINT 4
#define SQLITE_CHANGESET_FOREIGN_KEY 5
</pre></blockquote><p>
Values that may be passed as the second argument to a conflict-handler.</p>
<p><dl>
<dt>SQLITE_CHANGESET_DATA<dd>
The conflict handler is invoked with CHANGESET_DATA as the second argument
when processing a DELETE or UPDATE change if a row with the required
PRIMARY KEY fields is present in the database, but one or more other
(non primary-key) fields modified by the update do not contain the
expected "before" values.</p>
<p> The conflicting row, in this case, is the database row with the matching
primary key.</p>
<p><dt>SQLITE_CHANGESET_NOTFOUND<dd>
The conflict handler is invoked with CHANGESET_NOTFOUND as the second
argument when processing a DELETE or UPDATE change if a row with the
required PRIMARY KEY fields is not present in the database.</p>
<p> There is no conflicting row in this case. The results of invoking the
sqlite3changeset_conflict() API are undefined.</p>
<p><dt>SQLITE_CHANGESET_CONFLICT<dd>
CHANGESET_CONFLICT is passed as the second argument to the conflict
handler while processing an INSERT change if the operation would result
in duplicate primary key values.</p>
<p> The conflicting row in this case is the database row with the matching
primary key.</p>
<p><dt>SQLITE_CHANGESET_FOREIGN_KEY<dd>
If foreign key handling is enabled, and applying a changeset leaves the
database in a state containing foreign key violations, the conflict
handler is invoked with CHANGESET_FOREIGN_KEY as the second argument
exactly once before the changeset is committed. If the conflict handler
returns CHANGESET_OMIT, the changes, including those that caused the
foreign key constraint violation, are committed. Or, if it returns
CHANGESET_ABORT, the changeset is rolled back.</p>
<p> No current or conflicting row information is provided. The only function
it is possible to call on the supplied sqlite3_changeset_iter handle
is sqlite3changeset_fk_conflicts().</p>
<p><dt>SQLITE_CHANGESET_CONSTRAINT<dd>
If any other constraint violation occurs while applying a change (i.e.
a UNIQUE, CHECK or NOT NULL constraint), the conflict handler is
invoked with CHANGESET_CONSTRAINT as the second argument.</p>
<p> There is no conflicting row in this case. The results of invoking the
sqlite3changeset_conflict() API are undefined.</p>
<p></dl>
</p><p>See also lists of
<a href="../session/objlist.html">Objects</a>,
<a href="../session/constlist.html">Constants</a>, and
<a href="../session/funclist.html">Functions</a>.</p>
|
