Re: insert to projection
Date: Fri, 4 Sep 2009 13:01:53 -0700 (PDT)
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