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From: aaron@grad2.cis.upenn.edu (Aaron Watters)
Newsgroups: comp.databases
Subject: Union and Views
Message-ID: <27663@netnews.upenn.edu>
Date: 1 Aug 90 14:06:05 GMT
Sender: news@netnews.upenn.edu
Reply-To: aaron@grad2.cis.upenn.edu.UUCP (Aaron Watters)
Distribution: usa
Organization: University of Pennsylvania
Lines: 17

I recently volunteered some consulting for a friend
about a difficult database problem.  The solution we came
up with was unduely complex because of the following
weird restriction:

In Informix, for example, Unions are not allowed in the
definitions of Views.  Why is this?

Do other systems have this restriction?

How can system implementers look themselves in the mirror when
they impose such arbitrary restrictions on their customers?

Please respond directly to me, as I tend to lose track of
this hyperactive newsgroup.	-aaron

<< It's amazing how sophisticated triviality has become.>> -Lakatos.