Re: Do Data Models Need to built on a Mathematical Concept?
From: Neo <neo55592_at_hotmail.com>
Date: 2 May 2003 15:19:31 -0700
Message-ID: <4b45d3ad.0305021419.4226e8b_at_posting.google.com>
Date: 2 May 2003 15:19:31 -0700
Message-ID: <4b45d3ad.0305021419.4226e8b_at_posting.google.com>
> > All-in-all, the Relational Data Model is one of the best
> > at the present time, but it too has its flaws and limitations.
>
> What are the flaws and limitations you had in mind?
- That all rows of a table have the same number of columns
which leads to the need for NULLs.
- That all values in a column be of the same type.