Re: Logical equivalence of simple and complex types under the relational model?

From: Dan <guntermann_at_verizon.com>
Date: Wed, 08 Dec 2004 09:37:04 GMT
Message-ID: <4Xztd.1256$zh7.41@trnddc02>

"Alfredo Novoa" <alfredo_at_ncs.es> wrote in message news:ogfcr09ue0fpiuarpinq3j8637n9cbnr5r_at_4ax.com...
> On Sun, 5 Dec 2004 18:31:59 +0100, "Ja Lar" <ingen_at_mail.her> wrote:
>
>>
>>"Dan" ...
>>
>>> Databases or DBMSs, Alfredo? ;-)
>
> Databases, databases.

I am not exactly sure how to interpret this reply. Are you suggesting a unity between a scalar type system provided at a lower level (e.g. machine level or OS level) and the logical RM as managed and presented by software, particularly the DBMS?

This notion seems to present a variety of problems -- portability being one of them, but perhaps being one of the very least.

What exactly do you mean by "unity" of a scalar type system, the RM model, and databases (in contrast to DBMS's)?

Regards,

Received on Wed Dec 08 2004 - 03:37:04 CST