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From: jsm@vax1.UUCP
Newsgroups: comp.databases
Subject: Re: Relational DB on PCs and Macs
Message-ID: <329@vax1.ccs.cornell.edu>
Date: Tue, 31-Mar-87 23:38:00 EST
Article-I.D.: vax1.329
Posted: Tue Mar 31 23:38:00 1987
Date-Received: Sat, 4-Apr-87 04:01:58 EST
References: <2841@ecsvax.UUCP> <551@thumper.UUCP>
Reply-To: jsm@vax1.UUCP (Jon Meltzer)
Organization: Cornell Computer Services, Ithaca NY
Lines: 14
Keywords: Relational, PC, Macintosh

In article <551@thumper.UUCP> tr@thumper.UUCP writes:
>In article <2841@ecsvax.UUCP>, losee@ecsvax.UUCP (Robert Losee) writes:
>| 
>| Can anyone suggest database packages that appear to be really relational 
>| (Unlike DBase III, for example, with its difficult to use join) 
>| that is supported on both the IBM PC and the Mac?
>
>Anyway, are you familiar with the SET RELATION command?  You can list
>more than one file at a time, as if they were joined, without joining.
>JOINing is slow, I admit, but SET RELATION is not.
>
SET RELATION supports a virtual join. To join in R:base (5000; I hope
they've fixed this in System V) requires a physical join - a messy
operation involving temporary relations that must be deleted and packed.