Od: "signup" <[EMAIL PROTECTED]>
Temat: Re: [PHP-DB] <PK><FK>
> However, the answer about needing to define a PK before you can use it as
a
> FK being a limitation of SQL may have been a bit misleading (sorry,
Jarek).
> It is more of a building block of relational theory rather than a
> limitation of SQL.
It depends from POW: for database designer it's a part of RDB theory, but
for programmer it's a limitation. That's why programmers need CASE tools ;-)
Cheers
Jarek
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