Peter Mott wrote: > I always understood that the weakness of Object Databases was that they > provided no general ad hoc query language like SQL (or QUEL) though there > was no a priori reason why they couldn't. The way relational databases were > grounded in 1st order predicate logic (FOPC) seemed to give them an > advantage which Object Databases despite announcements and languages to the > contrary never quite manageed to overcome. I do know that the Relational > Model is based on the logic of Frege (1879), the predicate logic, while the > object model harks back to the IS_A hierarchies underpinning the logic of > Aristotle (300 BC). I checked out the orbtech URL but found nothing about > languages, logic or even taxonomies. So give us more evidence that the world > has changed! It has been long announced but has not happened. Frege rules.
P.S. Aristotle is overrated. I've always been more of a General Semantics (Korzybski) kind of guy myself. But then, philosophy is also overrated. So I've become more of a "do your own thing" kind of guy. -- Patrick K. O'Brien Orbtech http://www.orbtech.com Schevo http://www.schevo.org Pypersyst http://www.pypersyst.org _______________________________________________ DB-SIG maillist - [email protected] http://mail.python.org/mailman/listinfo/db-sig
