Re: Looking for how to model 3D objects in 2D relational databases

On 9 Oct 2005 09:01:56 -0700, "Marshall Spight" <marshall.spight_at_gmail.com> wrote:

[snip]

>The first thing you need to observe is that relational databases
>are not 2D. A dimension is a measure independent of any other
>dimensions. The columns of a relational table are independente;
>they are dimensions.

     That has bothered me for some time now.

     Given a PK, the columns are not independent. By that, the dimensionality of a table would be the number of columns in the key. What am I missing?

[snip]

Sincerely,

Gene Wirchenko Received on Mon Oct 10 2005 - 16:01:15 CDT