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Re: curiousity of sets of no relations?

From: Bob Badour <bbadour_at_pei.sympatico.ca>
Date: Sat, 10 Jun 2006 16:21:50 GMT
Message-ID: <ykCig.20292$A26.462646@ursa-nb00s0.nbnet.nb.ca> 





P.S. Table_Dee is not a valid result for Intersection because 
intersection is defined on specific types of relations and not on 
general relations the way Join is defined. A universal relation on RT is 
not a valid result for Join because Join is not defined on a specific 
type the way Intersection is.
Received on Sat Jun 10 2006 - 11:21:50 CDT












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