Oh, so it is about case in database object names.

Well, whatever is written there about various DM_*_CASE and makevars.ora it has nothing to do with Oracle seoftware. It has to do with your Prolifics's database drivers settings. I guess those settings are telling the driver whether it should pass the table and column names enclosed in double quotes to make them case sensitive to oracle like I described you in my first response.

Those settings influence only the Prolific drivers (whatever they are, I have never used them), they have nothing to do with Oracle whatsoever.