Hi Deva;
DWO string retrieval arguments are always passed "as is" by default. So it's up to your PowerScriot code to make sure that the data stream is not disturbed case wise (ie using the Upper or Lower commands, setting case use in the DWO column edit mask, etc.
The next part of course is the case setting on the DBMS side as that's where the SQL comparisons are carried out. HTH
Regards ... Chris