Re: question about automatic undo management

"Joel Garry" <joel-garry_at_home.com> wrote in message news:91884734.0301231738.4c7796ad_at_posting.google.com...
> "Howard J. Rogers" <howardjr2000_at_yahoo.com.au> wrote in message
news:<s6LX9.30783$jM5.79038_at_newsfeeds.bigpond.com>...
> > "Joel Garry" <joel-garry_at_home.com> wrote in message
> > > Consider a humongous DW combined with a humongous transactional labor
> > > and inventory system with humongous RBS's and product planners running
> > > humongous part and labor allocation what-if scenarios for building
> > > jumbo-jets on it. For each what-if, when they are done, they
> > > flashback. At some point, they are doing so much undo I/O, it becomes
> > > substantially like the old contention problems.
> > >
> >
> >
> > Sorry Joel: I don't buy this. Flashback means 'show me my table data as
it
> > used to be'. The essence of what-iffing (is that a word? Well, it is
now!)
> > is that you don't monkey around with the real data, but subset it into
some
> > sort of temporary holding area, and do your monkeying around there. When
the
> > model comes out not to your satisfaction, dispose of it... there's no
> > rolling back there.
>
> Your mistake is in assuming the average person who hasn't had you for
> a teacher will do it right, rather than trying the hyped features and
> then being unhappy.

Your mistake is assuming I'm just a teacher.

You can keep bringing it in to your replies if you like, if you feel that invalidates my point without further effort, and so vitiates the need to actually address any of the issues I might raise.

Whatever.

HJR Received on Thu Jan 23 2003 - 22:34:19 CST