QSqlDatabase: QMYSQL driver not loaded

[jacek]

QSqlError(-1, "", "")

So it seems to work and most probably the problem lies in your code. As I already wrote, make sure you create QApplication or QCoreApplication instance before you use classes from the QtSql module.

[onder]

hi,

i understood but late understood.
you are right : problem QApplication instance problem.
thanks a lot

Onder