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Re: Does Codd's view of a relational database differ from that of Date & Darwin? [M.Gittens]

From: -CELKO- <jcelko212_at_earthlink.net>
Date: 1 Jun 2005 07:34:16 -0700
Message-ID: <1117636456.185385.128930@g44g2000cwa.googlegroups.com>

You forgot about NULLs -- Date wants none, Codd had two kinds in RM II and SQL has one. Received on Wed Jun 01 2005 - 09:34:16 CDT

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