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# sql/overview/basicdatamanip/main.cpp Example File

    /****************************************************************************
    ** $Id$
    **
    ** Copyright (C) 1992-2000 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 "../login.h"

    bool createConnections();

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

        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;
    }

    bool createConnections()
    {

        QSqlDatabase *defaultDB = QSqlDatabase::addDatabase( DB_SALES_DRIVER );
        if ( ! defaultDB ) {
            qWarning( "Failed to connect to driver" );
            return FALSE;
        }
        defaultDB->setDatabaseName( DB_SALES_DBNAME );
        defaultDB->setUserName( DB_SALES_USER );
        defaultDB->setPassword( DB_SALES_PASSWD );
        defaultDB->setHostName( DB_SALES_HOST );
        if ( ! defaultDB->open() ) {
            qWarning( "Failed to open sales database: " +
                      defaultDB->lastError().driverText() );
            qWarning( defaultDB->lastError().databaseText() );
            return FALSE;
        }

        QSqlDatabase *oracle = QSqlDatabase::addDatabase( DB_ORDERS_DRIVER, "ORACLE" );
        if ( ! oracle ) {
            qWarning( "Failed to connect to oracle driver" );
            return FALSE;
        }
        oracle->setDatabaseName( DB_ORDERS_DBNAME );
        oracle->setUserName( DB_ORDERS_USER );
        oracle->setPassword( DB_ORDERS_PASSWD );
        oracle->setHostName( DB_ORDERS_HOST );
        if ( ! oracle->open() ) {
            qWarning( "Failed to open orders database: " +
                      oracle->lastError().driverText() );
            qWarning( oracle->lastError().databaseText() );
            return FALSE;
        }

        return TRUE;
    }