Re: Feedback from LinuxWorld, London

On Mon, Oct 10, 2005 at 05:05:46PM -0700, elein wrote:
> On Mon, Oct 10, 2005 at 05:42:31PM -0300, Marc G. Fournier wrote:
> > On Mon, 10 Oct 2005, David Fetter wrote:
> >
> > >In this case, it might be easier to make a writeable VIEW with two
> > >tables underneath and an appropriate call to ARRAY() and maybe to
> > >array_to_string()
> >
> > Is there any work being done on UPDATEABLE VIEWs? I found, at one point,
> > a 'work around' for it, but just wondering if there is any work being done
> > on a more 'native' method ...
>
> We have updateable views if you write the rules for them.
> A default updateable view could only be accurate all the
> time if it only contained a single table reference. Our

Well, you can create multi-table views that are also updateable. IIRC
the restriction is that joins must all be inner joins and you can't be
doing any kind of group by. I know the DB2 docs talk about this and I'm
pretty sure Oracle's do as well.
--
Jim C. Nasby, Sr. Engineering Consultant jnasby(at)pervasive(dot)com
Pervasive Software http://pervasive.com work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461