Re: A research effort on a computing model...

From: Cimode <>
Date: Fri, 8 Feb 2008 01:05:59 -0800 (PST)
Message-ID: <>

On Feb 8, 1:00 am, "Brian Selzer" <> wrote:
> "Cimode" <> wrote in message

> Trivializing functional dependencies? Eliminating inclusion dependencies?
> Sounds to me like you'll have a big job selling that.
Thanks for the comments.
Quite frankly, I do not recall mentionning anything about dependencies which are logical concepts that can be supported otherwise than by using keys. Instead of keys, a concept prior to RM, I prefered the concept of unique identifier, type and un-ary type. Just keep in mind that this is not a SQL system. Besides, I really am not trying to sell anything (the db core is designed to be open source) but rather as a way to explore new pathes and open up the ground for new ideas and perspectives to emerge .

To give you an idea:

if you consider...

PART: NUMBER(integer), NAME(string) and CAR: MODEL(string), PART(part) , PART in CAR has type PART , therefore *foreign key* is implicit though use of user defined type. I mentionned that a relation *de facto* constitutes a type with limited number of values that some other relation can draw from. I somehow believe that the concept was to use by Codd as a marketing effort to convince his IBM audience

Hope this clarifies... Received on Fri Feb 08 2008 - 10:05:59 CET

Original text of this message