Path: utzoo!attcan!uunet!tektronix!tekcae!moiram
From: moiram@tekcae.CAX.TEK.COM (Moira Mallison)
Newsgroups: comp.databases
Subject: Re: Object Oriented DBMSs
Keywords: Object oriented, DBMS
Message-ID: <2085@tekcae.CAX.TEK.COM>
Date: 5 Oct 88 00:19:09 GMT
References: <1682@daisy.UUCP>
Reply-To: moiram@tekcae.CAX.TEK.COM (Moira Mallison)
Organization: Tektronix, Inc., Beaverton,  OR.
Lines: 25


GemStone (Servio Logic) has one language for
both data definition and data manipulation, OPAL.  OPAL is based
on Smalltalk, and therefore follows the message-passing, dynamic
binding paradigm.  GemStone runs on VMS and Suns, maybe others.
A paper describing GemStone is "Developing an Object-Oriented DBMS",
published in the 1986 OOPSLA Proceedings.

Vbase (Ontologic) has a type definition language (TDL) separate
from it's data manipulation langugae (COP for C Object Processor).
Vbase follows the abstract data type paradigm: objects are strongly
typed and statically bound.  Vbase is also available on VMS and Suns 
(and maybe other platforms).  A reference for futher reading is 
"Combining Language and Database Advances in an Object-Oriented 
Development Environment", published in the 1987 OOPSLA Proceedings.

A third OODBMS is Gbase by Graphael. I haven't had a chance to look 
into this one yet, but the glossy that I picked up at OOPSLA last
week says " our solutions employ a variety of technologies, 
including object-oriented programming and logic-based inferencing
techniques, as well as classic data management techniques."
It runs on Apollos and Suns (and I know this runs on other platforms,
but I don't remember which ones.)

Moira Mallison