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000057_rts _Wed Mar 31 14:22:22 1993.msg
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Received: from boojum.cs.arizona.edu by optima.cs.arizona.edu (5.65c/15) via SMTP
id AA14324; Wed, 31 Mar 1993 14:22:23 MST
Date: Wed, 31 Mar 1993 14:22:22 MST
From: "Rick Snodgrass" <rts>
Message-Id: <199303312122.AA11487@boojum.cs.arizona.edu>
Received: by boojum.cs.arizona.edu; Wed, 31 Mar 1993 14:22:22 MST
To: tsql@cs.arizona.edu
Subject: multi-valued attributes
The proposed schema is much improved over previous ones, but now isn't
even in 3NF, which is somewhat embarrassing! I suggest that we split
off the Skills attribute to a new relation:
Skills (Name, Skill)
for which Skill would be a multi-valued attribute, in the
conventional, snapshot sense. This change would, I think, result in
BNCF for all relations.
-- Rick