Re: Looking for how to model 3D objects in 2D relational databases
From: Gene Wirchenko <genew_at_ucantrade.com.NOTHERE>
Date: Mon, 10 Oct 2005 14:01:15 -0700
Message-ID: <3hllk113iu4t1tv3jsefucn3asqfngq26q_at_4ax.com>
Date: Mon, 10 Oct 2005 14:01:15 -0700
Message-ID: <3hllk113iu4t1tv3jsefucn3asqfngq26q_at_4ax.com>
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
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.
>are not 2D. A dimension is a measure independent of any other
>dimensions. The columns of a relational table are independente;
>they are dimensions.
[snip]
Sincerely,
Gene Wirchenko Received on Mon Oct 10 2005 - 23:01:15 CEST