> Do I have to know the BLOB character set or can I set the BPB to do
> it for me? I could look the value up in the database of course, but
> it would be somewhat annoying and if there is some slick way to have
> the engine do it for me, it would be much less hassle/error prone.

AFAIR you can omit
isc_bpb_target_interp
part (in which case the database definition will be used)

Ivan
http://www.volny.cz/iprenosil/interbase/