1 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
---|
2 | <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/sql.doc:47 -->
|
---|
3 | <html>
|
---|
4 | <head>
|
---|
5 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
---|
6 | <title>sql/overview/update/main.cpp Example File</title>
|
---|
7 | <style type="text/css"><!--
|
---|
8 | fn { margin-left: 1cm; text-indent: -1cm; }
|
---|
9 | a:link { color: #004faf; text-decoration: none }
|
---|
10 | a:visited { color: #672967; text-decoration: none }
|
---|
11 | body { background: #ffffff; color: black; }
|
---|
12 | --></style>
|
---|
13 | </head>
|
---|
14 | <body>
|
---|
15 |
|
---|
16 | <table border="0" cellpadding="0" cellspacing="0" width="100%">
|
---|
17 | <tr bgcolor="#E5E5E5">
|
---|
18 | <td valign=center>
|
---|
19 | <a href="index.html">
|
---|
20 | <font color="#004faf">Home</font></a>
|
---|
21 | | <a href="classes.html">
|
---|
22 | <font color="#004faf">All Classes</font></a>
|
---|
23 | | <a href="mainclasses.html">
|
---|
24 | <font color="#004faf">Main Classes</font></a>
|
---|
25 | | <a href="annotated.html">
|
---|
26 | <font color="#004faf">Annotated</font></a>
|
---|
27 | | <a href="groups.html">
|
---|
28 | <font color="#004faf">Grouped Classes</font></a>
|
---|
29 | | <a href="functions.html">
|
---|
30 | <font color="#004faf">Functions</font></a>
|
---|
31 | </td>
|
---|
32 | <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>sql/overview/update/main.cpp Example File</h1>
|
---|
33 |
|
---|
34 |
|
---|
35 | <pre>/****************************************************************************
|
---|
36 | ** $Id: sql-overview-update-main-cpp.html 2051 2007-02-21 10:04:20Z chehrlic $
|
---|
37 | **
|
---|
38 | ** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
|
---|
39 | **
|
---|
40 | ** This file is part of an example program for Qt. This example
|
---|
41 | ** program may be used, distributed and modified without limitation.
|
---|
42 | **
|
---|
43 | *****************************************************************************/
|
---|
44 |
|
---|
45 | #include <<a href="qapplication-h.html">qapplication.h</a>>
|
---|
46 | #include <<a href="qsqldatabase-h.html">qsqldatabase.h</a>>
|
---|
47 | #include <<a href="qsqlcursor-h.html">qsqlcursor.h</a>>
|
---|
48 | #include "../connection.h"
|
---|
49 |
|
---|
50 | int main( int argc, char *argv[] )
|
---|
51 | {
|
---|
52 | <a href="qapplication.html">QApplication</a> app( argc, argv, FALSE );
|
---|
53 |
|
---|
54 | if ( createConnections() ) {
|
---|
55 | <a href="qsqlcursor.html">QSqlCursor</a> cur( "prices" );
|
---|
56 | cur.<a href="qsqlcursor.html#select">select</a>( "id=202" );
|
---|
57 | if ( cur.<a href="qsqlquery.html#next">next</a>() ) {
|
---|
58 | <a href="qsqlrecord.html">QSqlRecord</a> *buffer = cur.<a href="qsqlcursor.html#primeUpdate">primeUpdate</a>();
|
---|
59 | double price = buffer-><a href="qsqlrecord.html#value">value</a>( "price" ).toDouble();
|
---|
60 | double newprice = price * 1.05;
|
---|
61 | buffer-><a href="qsqlrecord.html#setValue">setValue</a>( "price", newprice );
|
---|
62 | cur.<a href="qsqlcursor.html#update">update</a>();
|
---|
63 | }
|
---|
64 | }
|
---|
65 |
|
---|
66 | return 0;
|
---|
67 | }
|
---|
68 | </pre><!-- eof -->
|
---|
69 | <p><address><hr><div align=center>
|
---|
70 | <table width=100% cellspacing=0 border=0><tr>
|
---|
71 | <td>Copyright © 2007
|
---|
72 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
---|
73 | <td align=right><div align=right>Qt 3.3.8</div>
|
---|
74 | </table></div></address></body>
|
---|
75 | </html>
|
---|