Re: More on Database cells, and other terminology
From: Bob Badour <bbadour_at_pei.sympatico.ca>
Date: Wed, 10 May 2006 16:13:21 GMT
Message-ID: <Bio8g.5944$A26.151166_at_ursa-nb00s0.nbnet.nb.ca>
>
>
> I don't see how a derived column in a base table combines physical and
> logical concerns.
>
> Could you elaborate on this?
Date: Wed, 10 May 2006 16:13:21 GMT
Message-ID: <Bio8g.5944$A26.151166_at_ursa-nb00s0.nbnet.nb.ca>
Alfredo Novoa wrote:
>>Bob Badour wrote:
>
>>I was headed more for: "it combines physical and logical concerns",
>
> I don't see how a derived column in a base table combines physical and
> logical concerns.
>
> Could you elaborate on this?
It doesn't. Only combining the physical specification and the logical specification does. Specifying which data in a base relation are stored and which are derived is physical. Received on Wed May 10 2006 - 18:13:21 CEST