Path: utzoo!utgpu!attcan!uunet!husc6!hscfvax!pavlov From: pavlov@hscfvax.harvard.edu (G.Pavlov) Newsgroups: comp.databases Subject: Re: MDBS Inc.'s MDBS III post-*relational* ?????? Message-ID: <630@hscfvax.harvard.edu> Date: 4 Oct 88 17:10:34 GMT References: <987@mdbs.UUCP> <2452@rtech.rtech.com> <1597@mcgp1.UUCP> Organization: Health Sciences Computing Facility, Harvard University Lines: 19 In article , broman@schroeder.nosc.mil (Vincent Broman) writes: > From very limited reading I gather that MDBS is an "extended-network" > DBMS, based on DB theory more recent than the network and relational > DB models, both of which originated around 1970. > What reading ? The only usage of "post-relational" that I have seen is as a general adjective and in MDBS ads. I would really like to know. What does "extended network" mean ? E.g., what characteristics does it have that are not dealt with or ar part of the network model ? Don't get me wrong. There are aspects of the relational model that cause us considerable grief (actually, not the model itself, but the rules gov- erning the design of languages used to operate on it). But it allows us to do things that were virtually impossible for us before. greg pavlov, fstrf, amherst, ny