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From: morrison@grads.cs.ubc.ca (Rick Morrison)
Newsgroups: comp.databases
Subject: Re: Extended RDB vs OODB
Message-ID: <4755@ubc-cs.UUCP>
Date: 17 Aug 89 19:33:24 GMT
References: <3560052@wdl1.UUCP> <408@odi.ODI.COM> <3324@rtech.rtech.com> <1989Aug11.143036.24703@odi.com> <1765@ethz.UUCP> <1989Aug17.141620.24941@odi.com>
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Reply-To: morrison@grads.cs.ubc.ca (Rick Morrison)
Organization: UBC Department of Computer Science, Vancouver, B.C., Canada
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In article <1989Aug17.141620.24941@odi.com> jack@odi.com (Jack Orenstein) writes:
> ... "Adding columns" is a relational notion that
>does not have a clear OO counterpart, (I'd be interested in hearing
>about analogies that anyone would care to offer.)
>
How about adding new instance variables to a class definition?
------------------------------
Rick Morrison		 | {alberta,uw-beaver,uunet}!ubc-cs!morrison
Dept. of Computer Science| morrison@cs.ubc.ca
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