Re: Logical equivalence of simple and complex types under the relational model?
Date: Wed, 01 Dec 2004 22:58:41 +0000
>>>I am not sure that the split between complex and simple is well defined >>>atall. >> >>It is not well defined at all.
I see it as almost a trivial definition.
> Which makes it difficult for me to understand Codd' s statement
> "A domain is simple if all its components are atomic (nondecomposable by the
> database system."
> and the requirement that all domains be simple,
> When this requirement does not seem amount to anything even within one
Paul. Received on Wed Dec 01 2004 - 23:58:41 CET