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| 2 | <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/sql.doc:40 -->
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| 6 | <title>sql/overview/navigating/main.cpp Example File</title>
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| 31 | </td>
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| 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/navigating/main.cpp Example File</h1>
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| 33 |
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| 34 |
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| 35 | <pre>/****************************************************************************
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| 36 | ** $Id: sql-overview-navigating-main-cpp.html 2051 2007-02-21 10:04:20Z chehrlic $
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| 37 | **
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| 38 | ** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
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| 39 | **
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| 40 | ** This file is part of an example program for Qt. This example
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| 41 | ** program may be used, distributed and modified without limitation.
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| 42 | **
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| 43 | *****************************************************************************/
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| 44 |
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| 45 | #include <<a href="qapplication-h.html">qapplication.h</a>>
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| 46 | #include <<a href="qsqldatabase-h.html">qsqldatabase.h</a>>
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| 47 | #include <<a href="qsqlquery-h.html">qsqlquery.h</a>>
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| 48 | #include "../connection.h"
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| 49 |
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| 50 | int main( int argc, char *argv[] )
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| 51 | {
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| 52 | <a href="qapplication.html">QApplication</a> app( argc, argv, FALSE );
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| 53 |
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| 54 | if ( createConnections() ) {
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| 55 | <a href="qsqlquery.html">QSqlQuery</a> query( "SELECT id, name FROM people ORDER BY name" );
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| 56 | if ( ! query.<a href="qsqlquery.html#isActive">isActive</a>() ) return 1; // Query failed
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| 57 | int i;
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| 58 | i = query.<a href="qsqlquery.html#size">size</a>(); // In this example we have 9 records; i == 9.
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| 59 | query.<a href="qsqlquery.html#first">first</a>(); // Moves to the first record.
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| 60 | i = query.<a href="qsqlquery.html#at">at</a>(); // i == 0
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| 61 | query.<a href="qsqlquery.html#last">last</a>(); // Moves to the last record.
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| 62 | i = query.<a href="qsqlquery.html#at">at</a>(); // i == 8
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| 63 | 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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| 64 | i = query.<a href="qsqlquery.html#at">at</a>(); // i == 4
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| 65 | }
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| 66 |
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| 67 | return 0;
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| 68 | }
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| 69 | </pre><!-- eof -->
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| 70 | <p><address><hr><div align=center>
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| 71 | <table width=100% cellspacing=0 border=0><tr>
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| 72 | <td>Copyright © 2007
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| 73 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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| 74 | <td align=right><div align=right>Qt 3.3.8</div>
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| 75 | </table></div></address></body>
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| 76 | </html>
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