Ron Jeffries wrote:
> On 3 Jul 2006 09:40:46 -0700, "Alfredo Novoa" <alfredono_at_gmail.com> 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.
>
> This organization had APP -> Middle Tier Code -> DBMS. I find that to be a
> pretty common setup.
Ron, I interpreted Alfredo's point as: If one creates a middle tier to
perform database management functions, it necessarily becomes part of
the database management system. 1) It is part of a system and 2) it
performs database management.
Received on Mon Jul 03 2006 - 22:37:36 CDT
