Re: Q: PRIMARY KEY vs UNIQUE constraint

Posted in 1996

Peder Skyt — Tue, 30 Jan 96 22:42:13 GMT — source: Informix-list mailing list archive (1991-1998)

Dennis Pimple (dennisp@informix.com) wrote: +In short, using constraints is the new way, and it's probably a good +idea to adopt the new way. Yes, DB-level constraints are Good Things, but PKs are not *new*, since they were already standardized by the (obsolete) ISO/IEC 9075:1989 SQL-standard. - Peder Skyt (pskyt@dc.dk) Datacentralen A/S Denmark