Re: insert to projection

From: Tegiri Nenashi <tegirinenashi_at_gmail.com>
Date: Fri, 4 Sep 2009 13:01:53 -0700 (PDT)
Message-ID: <16f69cc8-1c92-47fd-bb5e-2225cb2d92d5_at_a39g2000pre.googlegroups.com>



On Sep 4, 10:52 am, paul c <toledobythe..._at_oohay.ac> wrote:
> Tegiri Nenashi wrote:
>
> ...
>
> > The only RA operation, that seems to allow view updates is renaming.
>
> Since when does RA have views?

View is a named RA expression.

>
> > I suggest that the idea that we focus on basic relational algebra
> > operators, figure out which updates of these are legitimate, then
> > leverage this knowledge for complex view updates is fundamentally
> > wrong. Consider a "pivot" view:
> > ...
>
> Since when does RA have updates?

I understood this thread was about view updates. Projection view to be exact. Received on Fri Sep 04 2009 - 15:01:53 CDT

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