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From: "Robert B. Easter" <reaster@comptechnews.com>
To: Chris Bitmead <chris@bitmead.com>
Subject: Re: Thus spoke SQL3 (on OO)
Date: Sun, 21 May 2000 10:11:31 -0400
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On Sun, 21 May 2000, Chris Bitmead wrote:
> "Robert B. Easter" wrote:
> 
> > I guess the major difference is that the hierarchial-model does not 
> > support multiple inheritance.  
> 
> I don't agree. From SQL3...
> 
> "To avoid name clashes, a subtype can rename selected components of the
> representation inherited from its direct supertypes."
> 
> and if that doesn't clinch it...
> 
> "Let the term replicated column mean a column appearing in more than one
> direct supertable of T that is inherited by at least one of those direct
> supertables from the same column of a single higher-level supertable."
> 
> That sounds like multiple repeated inheritance to me.
> 

What is the date on the copy of the SQL/Foundation you are reading?  My copy is
dated September 23, 1999 ISO/IEC 9075-2 SQL3_ISO.  I tried searching for the
quotes above and could not find them.  Do I have the correct version?


-- 
Robert B. Easter
reaster@comptechnews.com