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From: render@m.cs.uiuc.edu
Newsgroups: comp.databases
Subject: Re: OO DBMSs (was Re: Extended RDB
Message-ID: <3900022@m.cs.uiuc.edu>
Date: 4 Sep 89 17:26:00 GMT
References: <182314@<1989Sep3>
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Nf-ID: #R:<1989Sep3:182314:m.cs.uiuc.edu:3900022:000:1321
Nf-From: m.cs.uiuc.edu!render    Sep  4 12:26:00 1989


Written  5:23 pm  Sep  3, 1989 by craig@gpu.utcs.utoronto.ca :
>(John Orenstein requested analogies for 'adding a column' in O-O terms,
>sorry I haven't the article on hand)
>
>I think this issue is important because it may help to define relational
>operations as a proper subset of object-oriented operations, and let
>OODBMS developers provide all standard relational capabilities in their
>systems, which I think is a worthwhile goal.  I have also included some
>discussion of Linda, which is a DBMS in Krueger's sense, and well worth
>investigating as a unifying access metaphor.  

There are other studies of the properties of changing OO schema and the
effects on an active database:

    Qing Li and Dennis McLeod, "Object Flavor Evolution in an Object-Oriented 
    Database System." In _Proceedings of the Conference on Office Information 
    Systems_, edited by Robert B. Allen.  March 1988, pp. 265--275.

    Jay Banerjee, Won Kim Hyoung-Joo Kim and Henry F. Korth,
    "Semantics and Implementation of Schema Evolution in Object-Oriented 
     Databases", ACM SIGMOD Notices, 16:3 (December 1987), pp. 311-322.

    Gia-toan Nguyen and Dominique Rieu, "Schema Evolution in Object-Oriented 
    Database Systems."  Technical Report no. 947, Unite De Recherche, 
    INRIA-Rocquencourt, December 1988.

hal.