David Fetter wrote:
> 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.
Heh, fair enough. When I think of CYA, I think of the former.
Joshua D. Drake
>
> Cheers,
> D
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