qt app vs lib

    QSqlDatabase db = QSqlDatabase::addDatabase("QODBC3");
    db.setDatabaseName("db");
    db.setUserName("user");
    db.setPassword("pass");
    if(!db.open())
    {
        qDebug() << "Cannot open database:" << db.lastError();
        return false;
    }

    QSqlQuery q;
    q.setForwardOnly(true);

    q.prepare("{:res = call test(:p1, :p2, :p3)}");
    q.bindValue(":p1", 111,  QSql::In);
    q.bindValue(":res", 0,  QSql::Out);
    QString p3(127, '\0');
    q.bindValue(":p3", p3,  QSql::Out);

    QString pad(256, ' ');

    QString p2 = "текст на русском";
    q.bindValue(":p2", p2,  QSql::In);

    bool eR = q.exec();
    int ret = q.boundValue(":res").toInt();
    p3 = q.boundValue(":p3").toString();