main.cpp

来自「76个qt 例子。 非常适合学习qt编程」· C++ 代码 · 共 42 行

/****************************************************************************
** $Id: qt/main.cpp   3.3.1   edited Sep 10 12:49 $
**
** Copyright (C) 1992-2002 Trolltech AS.  All rights reserved.
**
** This file is part of an example program for Qt.  This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/

#include <qapplication.h>
#include <qsqldatabase.h>
#include <qsqlquery.h>
#include "../connection.h"

bool createConnections();


int main( int argc, char *argv[] )
{
    QApplication app( argc, argv, FALSE );

    int rows = 0;

    if ( createConnections() ) {
	QSqlQuery query( "INSERT INTO staff ( id, forename, surname, salary ) "
		     "VALUES ( 1155, 'Ginger', 'Davis', 50000 )" );
	if ( query.isActive() ) rows += query.numRowsAffected() ;

	query.exec( "UPDATE staff SET salary=60000 WHERE id=1155" );
	if ( query.isActive() ) rows += query.numRowsAffected() ;

	query.exec( "DELETE FROM staff WHERE id=1155" ); 
	if ( query.isActive() ) rows += query.numRowsAffected() ;
    }

    return ( rows == 3 ) ? 0 : 1; 
}