> When distributing a fdb to customers is there anyway to
> prevent the sysdba from accessing the tables, stored procs,
> etc on that fdb? (I am assuming that sysbda may needs to
> admin other fdb on the server)

Short answer: No.

Long answer see:
http://www.firebirdsql.org/index.php?op=doc&sub=contrib&id=fb_meta_security

--
Geoff Worboys
Telesis Computing