whose mainframe computer? this newsgroup answers questions about developing
databases using MS Access relational database software. unless you're using
Access, suggest you post your question to an appropriate newsgroup - and
provide a lot more detail so people have some idea what you're talking
about. as posted, your question sounds like it comes straight out of a
homework assignment in a computer sciences class, and very few folks around
here are willing to do homework unless they get the credit.
