My dad works on IBM DB2 (competitor to Oracle 9i), he does the query rewrites on SQL code, the code generated might be valid but be horribly inefficient.
This summer I will write scripts that will form a "toolbox" for testing their relational databases. However I'll probalby be working on the workstation/server version instead of the mainframe verson my dad works on.
Yea, I got the co-op hookup there this summer!