problem while executing Query

[jjbabu]

I am using QT commercial edition and i installed my OCI driver to access ORACLE db.

static int cCount = 0;
 
 
    QSqlError err;
    QSqlDatabase db = QSqlDatabase::addDatabase(driver, QString("Connection%1").arg(++cCount));
    //db.setDatabaseName(dbName);
    db.setHostName(host);
    db.setPort(port);
    if (!db.open(user, passwd)) {
        err = db.lastError();
        db = QSqlDatabase();
        QSqlDatabase::removeDatabase(QString("Connection%1").arg(cCount));
    }
	else{
		conName.append(QString::number(cCount,10));
		  QSqlQuery query;
		   query.prepare("INSERT INTO person (id, forename, surname) "
                   "VALUES (:id, :forename, :surname)");
     query.bindValue(":id", 10);
     query.bindValue(":forename", "Bart");
     query.bindValue(":surname", "Simpson");
if(!query.exec())//;
		{
			QSqlError err1=query.lastError();
			QMessageBox::information(this,"Hi",err1.text());
		}

static int cCount = 0;
	

    QSqlError err;
    QSqlDatabase db = QSqlDatabase::addDatabase(driver, QString("Connection%1").arg(++cCount));
    //db.setDatabaseName(dbName);
    db.setHostName(host);
    db.setPort(port);
    if (!db.open(user, passwd)) {
        err = db.lastError();
        db = QSqlDatabase();
        QSqlDatabase::removeDatabase(QString("Connection%1").arg(cCount));
    }
	else{
		conName.append(QString::number(cCount,10));
		  QSqlQuery query;
		   query.prepare("INSERT INTO person (id, forename, surname) "
                   "VALUES (:id, :forename, :surname)");
     query.bindValue(":id", 10);
     query.bindValue(":forename", "Bart");
     query.bindValue(":surname", "Simpson");
if(!query.exec())//;
		{
			QSqlError err1=query.lastError();
			QMessageBox::information(this,"Hi",err1.text());
		}

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This is the method am using to create connection with my Db and immediately executing the sql query.Using above method i am able to connect with oracle Db with OCI driver and while executing sql query i am receiving error,which states that "Driver not loaded Driver not loaded".

what is the problem? can any one help me....

thanks

[spirit]

open sqlbrowser which is located on QTDIR/demos/sqlbrowser and check if OCI driver is present and if is it then try to connect to a database using this tool. in that case if OCI driver is not present then you have to build it, read this how to do this.