Re: RM's Canonical database

From: Bob Badour <bbadour_at_pei.sympatico.ca>
Date: Mon, 03 Jul 2006 17:28:59 GMT
Message-ID: <vtcqg.5709$pu3.128977_at_ursa-nb00s0.nbnet.nb.ca>

Alfredo Novoa wrote:

> Hi,
>
> Marshall wrote:
>

>>>In favor of putting a common rule in the DBMS is that it is centralized. The
>>>"Once and Only Once", or "DRY" principle suggests that it should be there.
>>>
>>>Another possibility for a location for such a rule is in a middle tier, where it
>>>can also meet the DRY principle.
>>
>>But then you lose the centralization.

>
> If "middle tier" has the usual meaning then the middle tier IS the
> DBMS.
I agree. Poorly implemented and incomplete when reinvented outside the scope of a traditional dbms product, but it becomes the dbms nevertheless. Received on Mon Jul 03 2006 - 19:28:59 CEST