Re: On view updating

On Sat, 18 Sep 2004 06:24:31 -0700, Alfredo Novoa wrote:

> What do you think about this?
>
> http://www.dbdebunk.com/page/page/1396086.htm
>
> I can't agree more with this:
>
> ---
> I therefore have come to believe that "view updateability" should be
> allowed to happen IF AND ONLY IF the system has PRECISELY ONE WAY to
> "resolve" the user's request.
> ---

It depends of course on what you mean by "resolve" but for most reasonable interpretations that I can think of the ONLY IF part is widely accepted by almost everybody who has done any serious research on the view update problem. The IF part is an entirely other matter and certainly not obvious, as you may remember from the discussions with Jens Lechtenboerger.

• Jan Hidders