Posted by Anith Sen on 03/14/06 00:54

Erland,

Can you post your definition of a "natural key"?

>> And this is just one example where the real world does not have that fine
>> key the relational model wants.

However, real world examples of entities, by virtue of there mere existance,
have keys regardless of what relational model mandates.

>> Again, think customers.

What about them?

--
Anith

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