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From: paul c <toledobythesea@ooyah.ac>
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Newsgroups: comp.databases.theory
Subject: Re: atomic
References: <T6RVi.162603$th2.137089@pd7urf3no>   <QsSdndZJ24PHsrXanZ2dnUVZ8qKvnZ2d@pipex.net>   <1193836040.917858.169670@q5g2000prf.googlegroups.com>   <Jq3Wi.164960$1y4.6863@pd7urf2no>   <4728db84$0$14867$9a566e8b@news.aliant.net> <1193860621.614232.245860@q3g2000prf.googlegroups.com> <4728f759$0$14832$9a566e8b@news.aliant.net> <L9jWi.2627$hd1.2531@trndny01> <4729f288$0$14877$9a566e8b@news.aliant.net> <bTmWi.165151$Da.50368@pd7urf1no> <4729fd7d$0$14864$9a566e8b@news.aliant.net> <jQnWi.165208$Da.99022@pd7urf1no> <ayrWi.166663$1y4.150325@pd7urf2no> <472a4aad$0$14879$9a566e8b@news.aliant.net> <DetWi.165783$Da.130771@pd7urf1no> <472a66e3$0$14875$9a566e8b@news.aliant.net> <NSJWi.168563$1y4.77273@pd7urf2no> <472b944c$0$14867$9a566e8b@news.aliant.net> <Bi1Yi.183957$th2.120376@pd7urf3no> <Ql2Yi.182024$Da.73598@pd7urf1no>
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Date: Tue, 06 Nov 2007 18:48:16 GMT
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paul c wrote:
...
> along with a constraint such as B REFERENCES R.


In conventional RM talk, I don't think I've ever seen anybody write "B 
REFERENCES R" even though it makes some sense to me, ie., I don't see a 
logical reason to disallow it in theory even though it might not be of a 
reasonable practical use.  Maybe some people would read it as meaning B 
REFERENCES all attributes of R.