Re: Date's First Great Blunder
From: Leandro Guimarães Faria Corsetti Dutra <leandro_at_dutra.fastmail.fm>
Date: Tue, 20 Apr 2004 19:11:30 -0300
Message-ID: <pan.2004.04.20.22.11.28.448611_at_dutra.fastmail.fm>
Date: Tue, 20 Apr 2004 19:11:30 -0300
Message-ID: <pan.2004.04.20.22.11.28.448611_at_dutra.fastmail.fm>
Em Mon, 19 Apr 2004 14:01:11 -0500, Dawn M. Wolthuis escreveu:
>> Alphora Dataphor.
>
> Great -- so what advantages can you see in a real relational database
> management system that are not present in the not-exacxtly-relational
> implementations that are out there? In other words, in what way is a pure
> relational implementation more useful than one that is not-so-pure?
User defined types as first class citizens, including special values to get us rid of NULLs.
Updateable derived relations (updateable views).
All the system defined on the database, including UI.
And so on... get it for yourself on http://alphora.com./ -- unfortunately it needs MS .Net.
-- Leandro Guimarães Faria Corsetti Dutra +55 (11) 5685 2219 Av Sgto Geraldo Santana, 1100 6/71 +55 (11) 5686 9607 04.674-000 São Paulo, SP BRASIL http://br.geocities.com./lgcdutra/Received on Wed Apr 21 2004 - 00:11:30 CEST