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Re: Requirements for update languages?

From: Jens Lechtenbörger <lechtej_at_uni-muenster.de>
Date: 11 Nov 2002 07:54:37 +0100
Message-ID: <m21y5swq8i.fsf@pcwi1068.uni-muenster.de> 





nelson_at_nelsonricardo.com (Nelson Ricardo) writes:



> If by bags you mean online shopping bags/carts, I believe that

> there shouldn't be duplicate items.  There should be an item and

> an associated quantity.  Just my opinion.




Yes, that's probably the preferred modeling alternative.  However,
the data model of SQL offers storage of duplicates, and I wondered
what makes a good update language for such a data model.



Jens
Received on Mon Nov 11 2002 - 00:54:37 CST












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