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Home -> Community -> Usenet -> c.d.o.server -> Re: How long is long enough for primary key ?
DA Morgan wrote:
>
> Second Normal Form
> tables do not have composite primary keys
>
I realize that your definitions are only informal but this one is a total mistake. 2NF does not imply the absence of composite keys.
-- David PortasReceived on Sat Oct 07 2006 - 04:49:06 CDT