connection.cpp

来自「Trolltech公司发布的基于C++图形开发环境」· C++ 代码 · 共 52 行

/****************************************************************************
** $Id: qt/connection.cpp   3.3.4   edited Nov 14 2003 $
**
** 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 <qsqldatabase.h>
#include "connection.h"

bool createConnections()
{

    QSqlDatabase *defaultDB = QSqlDatabase::addDatabase( DB_SALES_DRIVER );
    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().text() );
	return FALSE;
    }

    QSqlDatabase *oracle = QSqlDatabase::addDatabase( DB_ORDERS_DRIVER, "ORACLE" );
    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().text() );
	return FALSE;
    }

    QSqlQuery q(QString::null, defaultDB);
    q.exec("create table people (id integer primary key, name char(40))");
    q.exec("create table staff (id integer primary key, forename char(40), "
           "surname char(40), salary float, statusid integer)");
    q.exec("create table status (id integer primary key, name char(30))");
    q.exec("create table creditors (id integer primary key, forename char(40), "
           "surname char(40), city char(30))");
    q.exec("create table prices (id integer primary key, name char(40), price float)");
    q.exec("create table invoiceitem (id integer primary key, "
           "pricesid integer, quantity integer, paiddate date)");

    QSqlQuery q2(QString::null, oracle);
    q2.exec("create table people (id integer primary key, name char(40))");

    return TRUE;
}