Re: object oriented vs object relational
From: James <jraustin1_at_hotmail.com>
Date: 11 Jun 2002 07:39:26 -0700
Message-ID: <a6e74506.0206110639.248c7f58_at_posting.google.com>
OO terminology describes the same in an orthogonal manner:
Date: 11 Jun 2002 07:39:26 -0700
Message-ID: <a6e74506.0206110639.248c7f58_at_posting.google.com>
> > Both XDb and rdbs are fundamentally based on the same concept of
> > relation (a related set of information, according to one book).
>
> XDb is based on domains -- not relations.
What is the definition of relation?
What is the definition of domain?
Which one is better and for what?
Which one is the fundamental basis for a database?
OO terminology describes the same in an orthogonal manner:
The object is the fundamental atomic unit. An object can represents anything: a number, a word, a sound, a picture, a movie, a smell, a feeling, an idea, etc.
An object can have instances.A class is an object that has or can have instances. An instance is an object that has a class.
This is the basis of XDb (www.xdb1.com) Received on Tue Jun 11 2002 - 16:39:26 CEST