Re: So what's null then if it's not nothing?
From: DM Unseen <dm.unseen_at_gmail.com>
Date: 18 Nov 2005 05:38:54 -0800
Message-ID: <1132321134.851817.146710_at_g47g2000cwa.googlegroups.com>
Date: 18 Nov 2005 05:38:54 -0800
Message-ID: <1132321134.851817.146710_at_g47g2000cwa.googlegroups.com>
Interesting question, which I had also contemplated on, and then reworked to:
Is there a *system*(model) that is able to recompose to full, and model
from irreducible relations? (rephrased form previous post)
Actually the only models that more or less archieves this that i know
of are FCO-IM and ORM.
These are actually NIAM dialects that map rather elegantly to
relational schemas (not all NIAM dialects do).
This actuallty implies that FCO-IM/ORM would be a good candidate to as
an implementation model for a RDMBS that exibits this feature.
Interstingly, these are currently in use asconceptual information
modelling languages from which a relational schema(BCF to 5NF) can be
deduced.
DM Unseen Received on Fri Nov 18 2005 - 14:38:54 CET