On Fri, Apr 06, 2007 at 09:22:55AM -0700, Joshua D. Drake wrote:
> >The people that use it are the people stuck by dogmatic rules about
> >"every table must have a primary key" or "every logical constraint
> >must be protected by a database constraint". Ie, database shops run
> >by the CYA principle.
>
> Or ones that actually believe that every table where possible should
> have a primary key.
>
> There are very, very few instances in good design where a table does
> not have a primary key.
>
> It has nothing to do with CYA.
That depends on what you mean by CYA. If you mean, "taking a
precaution just so you can show it's not your fault when the mature
hits the fan," I agree. If you mean, "taking a precaution that will
actually prevent a problem from occurring in the first place," it
definitely does.
Cheers,
D
--
David Fetter <david@fetter.org> http://fetter.org/
phone: +1 415 235 3778 AIM: dfetter666 Skype: davidfetter
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