Date: Wed, 3 Jan 90 16:19 PST From: Robert D. Pfeiffer <RDP@ALAN.kahuna.decnet.lockheed.com> I was wondering if a database textbook exists which is acknowledged to be the-classic-definitive-work-on-database-theory. "An Introduction to Database Systems" by C. J. Date. I think Date is generally considered the Knuth of databases. barmar