Re: Impossible Database Design?

From: Nikolai Onken <nikolai.onken_at_gmail.com>
Date: 16 May 2006 11:39:02 -0700
Message-ID: <1147804742.682033.96710@y43g2000cwc.googlegroups.com>

I've ordered the book..... huh, knowledge is still not cheap in the days of internet and newsgroups :) ...

Kenneth Downs wrote:
> The more general case can provide various rules that
> determine which rows exclude others, in the case of the unique
> constraint it is simple equality, in the case of time it is interval overlap.

Wouldn't the problem occur when I am looking for equality on an 'infinite' or really long scale (do 2 functions cross each other at any point?) rather than interval overlap? Received on Tue May 16 2006 - 13:39:02 CDT