Re: Can these constraint be implemented in an RDBMS ?
Date: Tue, 9 Mar 2004 21:58:46 -0500
Message-ID: <j66dnU4i7du0xtLdRVn_iw_at_golden.net>
"ben brugman" <ben_at_niethier.nl> wrote in message
news:4046fe19$0$268$4d4ebb8e_at_read.news.nl.uu.net...
> > > First we implemented a view which did check if the user was allowed
> > > to access certain parts. Because of the response times this gave,
> > > it was decided that the check would be done once and be valid for
> > > 24 hours. (Our 'RDBMS'ses where Oracle and SQL-server, I do not
> > > know if they are 'decent' or 'RDBMS' or a 'decent RDBMS' or not).
> >
> > Um, would that be like a snapshot? If not, how would it differ? (No,
they
> > are not particularly decent. Why do you lack the ability to judge for
> > yourself?)
>
> No that would not be like a snapshot.
> Snapshot is a techique employed by Oracle for example.
Nope. A snapshot is a stored derived relation. If you want to talk about any of Oracle's perversions go to one of the Oracle newsgroups. Received on Wed Mar 10 2004 - 03:58:46 CET