Using DSN for a database connection.

What default DSN will be set if it is not specified?

There is no default DSN. The application will take the name given in the 4GL database statement as an ODBC connect string. For instance:

DATABASE ‘cms’

The application will search for a DSN named ‘cms’, e.g. DSN=cms.
Make sure that you have set ODBC_DSN environment variable correctly and there aren’t any names in the registry except HKLM\Software\Querix\Q4GL