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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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