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76 lines
3.0 KiB
76 lines
3.0 KiB
14 years ago
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/sql.doc:47 -->
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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<title>sql/overview/update/main.cpp Example File</title>
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<style type="text/css"><!--
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fn { margin-left: 1cm; text-indent: -1cm; }
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a:link { color: #004faf; text-decoration: none }
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a:visited { color: #672967; text-decoration: none }
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body { background: #ffffff; color: black; }
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--></style>
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</head>
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<body>
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<table border="0" cellpadding="0" cellspacing="0" width="100%">
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<td valign=center>
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<a href="index.html">
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<font color="#004faf">Home</font></a>
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<font color="#004faf">All Classes</font></a>
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<font color="#004faf">Main Classes</font></a>
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</td>
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<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>
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<pre>/****************************************************************************
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** $Id: qt/main.cpp 3.3.8 edited Jan 11 14:37 $
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**
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** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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**
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** This file is part of an example program for Qt. This example
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** program may be used, distributed and modified without limitation.
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**
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*****************************************************************************/
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#include <<a href="qapplication-h.html">qapplication.h</a>>
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#include <<a href="qsqldatabase-h.html">qsqldatabase.h</a>>
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#include <<a href="qsqlcursor-h.html">qsqlcursor.h</a>>
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#include "../connection.h"
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int main( int argc, char *argv[] )
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{
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<a href="qapplication.html">QApplication</a> app( argc, argv, FALSE );
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if ( createConnections() ) {
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<a href="qsqlcursor.html">QSqlCursor</a> cur( "prices" );
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cur.<a href="qsqlcursor.html#select">select</a>( "id=202" );
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if ( cur.<a href="qsqlquery.html#next">next</a>() ) {
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<a href="qsqlrecord.html">QSqlRecord</a> *buffer = cur.<a href="qsqlcursor.html#primeUpdate">primeUpdate</a>();
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double price = buffer-><a href="qsqlrecord.html#value">value</a>( "price" ).toDouble();
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double newprice = price * 1.05;
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buffer-><a href="qsqlrecord.html#setValue">setValue</a>( "price", newprice );
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cur.<a href="qsqlcursor.html#update">update</a>();
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}
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}
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return 0;
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}
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</pre><!-- eof -->
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<p><address><hr><div align=center>
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<table width=100% cellspacing=0 border=0><tr>
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<td>Copyright © 2007
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<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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<td align=right><div align=right>Qt 3.3.8</div>
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</table></div></address></body>
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</html>
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