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77 lines
3.3 KiB
77 lines
3.3 KiB
<!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:40 -->
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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/navigating/main.cpp Example File</title>
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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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<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/navigating/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 TQt. 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="qsqlquery-h.html">qsqlquery.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">TQApplication</a> app( argc, argv, FALSE );
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if ( createConnections() ) {
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<a href="qsqlquery.html">TQSqlQuery</a> query( "SELECT id, name FROM people ORDER BY name" );
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if ( ! query.<a href="qsqlquery.html#isActive">isActive</a>() ) return 1; // Query failed
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int i;
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i = query.<a href="qsqlquery.html#size">size</a>(); // In this example we have 9 records; i == 9.
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query.<a href="qsqlquery.html#first">first</a>(); // Moves to the first record.
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i = query.<a href="qsqlquery.html#at">at</a>(); // i == 0
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query.<a href="qsqlquery.html#last">last</a>(); // Moves to the last record.
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i = query.<a href="qsqlquery.html#at">at</a>(); // i == 8
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query.<a href="qsqlquery.html#seek">seek</a>( query.<a href="qsqlquery.html#size">size</a>() / 2 ); // Moves to the middle record.
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i = query.<a href="qsqlquery.html#at">at</a>(); // i == 4
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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>TQt 3.3.8</div>
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</table></div></address></body>
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</html>
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