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From: alfredo@ncs.es (Alfredo Novoa)
Newsgroups: comp.databases.theory
Subject: Re: WHAT vs HOW vs WHERE
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Date: Mon, 31 May 2004 16:14:11 GMT
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On Mon, 31 May 2004 18:11:57 +0300, "x" <x-false@yahoo.com> wrote:

>> And the logical pointers are bad. One of the major advantages of The
>> Relational Model is that they are droped.
>
>Many use FK as pointers ...

But they are not pointers. It is a bad metaphor.

>There is nothing in the Relational Model to prevent this. (maybe I'm wrong
>?)

It is a good use of integrity constraints.

On the other hand you know that The RM say nothing about the
underlying physical pointers.



Regards
  Alfredo