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Home -> Community -> Usenet -> comp.databases.theory -> Re: Clean Object Class Design -- Circle/Ellipse

Re: Clean Object Class Design -- Circle/Ellipse

From: Bob Badour <bbadour_at_golden.net>
Date: Sun, 22 Jul 2001 00:42:02 -0400
Message-ID: <NYs67.43$6T.11187229@radon.golden.net> 






>My original point was to show Date's mistake

>of confusing sets and types.




He does not do that. In his work, he very explicitly points out that
relations are sets and not types. Domains are types, which consist of a set
of values and a set of operators on those values.
Received on Sat Jul 21 2001 - 23:42:02 CDT












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