Re: Poll: What percentage advantage are RDBMS vendors taking of the RM?

"mountain man" <hobbit_at_southern_seaweed.com.op> wrote in message news:aBhpe.7188$F7.4305_at_news-server.bigpond.net.au...
> "Alan" <not.me_at_uhuh.rcn.com> wrote in message
> news:7Iepe.11105$ld3.6729_at_trnddc04...
> > What you have asked is akin to, "How big is your database?" It is not a
> > valid question in that it does not indicate what parameters you expect
to
> > be
> > used. For example, do you mean a percent of "expected" features? Are
they
> > weighted by importance? Important to whom? For what purpose (E.g., OLTP,
> > OLAP?)
>
>
> What I am trying to ask is "How *relational* are DB2, Oracle and SQL
Server
> according to the principles of the relational model?
>
> People assert that these SQL-DBMS are "the best we have at the moment"
> and that they are not ("Fully") relational. I want to understand just HOW
> MUCH they are not fully relational, as a ball-park rough-as-guts
estimate.
>
> Is it 10% or is it 90%. ?
>
>
> > Why would anyone here be able to give a more valid answer than the
> > thousands of practitioners alsewhere on the net? Isn't it best answered
> > through careful unbiased research of the subject?
>
>
> IMO this question is best answered by those who have a good
> understanding of the relational model ONLY ! Hence the Q here.
>
>
> >As asked, it borders on
> > being a silly question.
>
> Well, hopefully I have restated the question in less border-line
> terms. Thanks for the prompt. Does this make more sense?
>

Yes, it is clearer now. Another thought, though: Is a 100% relational RDBMS a good thing, or are some modifications a good idea after all?

>
> > "mountain man" <hobbit_at_southern_seaweed.com.op> wrote in message
> > news:padpe.6334$F7.1241_at_news-server.bigpond.net.au...
> >> "paul c" <toledobythesea_at_oohay.ac> wrote in message
> >> news:kvZoe.1586829$8l.1480031_at_pd7tw1no...
> >> > mountain man wrote:
> >>
> >> >> The rating of 100 equates to full realisation of the RM.
> >> >> The rating of 50 equates to half realisation of the RM.
> >> >> The rating of 10 equates to 10% realisation of the RM.
> >> >> The rating of 0 equates to zero realisation of the RM
> >> >>
> >> >> My estimate/opinion is around 80% give or take 10%.
> >> >>
> >> >> What is your estimate and/or opinion?
> >> >>
> >> >
> >> > there seem to be two questions here. my answer to the first one is
> >> > that
> > i
> >> > am zero percent prepared to answer the second one, let alone willing.
> >>
> >> There is one question. In what percentage is the RM
> >> "realised" in the major SQL-RDBMS products?
> >>
> >> I am interested to try and evaluate how people think
> >> about the "realisation" of the RM in today's industry.
> >>
> >> There are a widely ranging series of perspectives,
> >> and I am attempting to gauge this series.
> >>
> >> Do you have a problem with this question?
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> --
> >> Pete Brown
> >> IT Managers & Engineers
> >> Falls Creek
> >> Australia
> >> www.mountainman.com.au
> >>
> >>
> >
> >
>
>
Received on Thu Jun 09 2005 - 03:59:00 CEST