Re: Decline of Science: Computer Science and Databases
From: Leandro Guimarães Faria Corsetti Dutra <lgcdutra_at_terra.com.br>
Date: Mon, 04 Nov 2002 15:02:03 +0100
Message-ID: <aq5ukr$6qau6$1_at_ID-148886.news.dfncis.de>
>
> No, I did mean table inheritance, since I think table inheritance
> would be necessary, to represent object oriented languages correctly.
Date: Mon, 04 Nov 2002 15:02:03 +0100
Message-ID: <aq5ukr$6qau6$1_at_ID-148886.news.dfncis.de>
Carl Rosenberger wrote:
> Leandro Guimarães Faria Corsetti Dutra wrote:
>
>> I think he means type inheritance as applied to relvar types, or >> derived relations updateability.
>
> No, I did mean table inheritance, since I think table inheritance
> would be necessary, to represent object oriented languages correctly.
We have a problem, Houston.
Data is data. Programs are something else. If you want to represent programs in a database, this has nothing to do with OO. Now if you want to overcome the so-called OO-RM "impedance mismatch", please read The Third Manifesto. You will see that type inheritance thru S by C is needed indeed, and a relvar is also a type. So that's it.
Now, if you think something else is required, please enlighten us.
-- _ / \ Leandro Guimarães Faria Corsetti Dutra +41 (21) 216 15 93 \ / http://homepage.mac.com./leandrod/ fax +41 (21) 216 19 04 X http://tutoriald.sourceforge.net./ Orange Communications CH / \ Campanha fita ASCII, contra correio HTML +41 (21) 644 23 01Received on Mon Nov 04 2002 - 15:02:03 CET