Re: theory and practice: ying and yang
Date: Wed, 25 May 2005 15:51:50 +0200
Message-ID: <3n09919j97bfe936nrqm8embca3ch4fg0o_at_4ax.com>
On Wed, 25 May 2005 12:28:52 GMT, "mountain man" <hobbit_at_southern_seaweed.com.op> wrote:
>> Of course, but this is rather contradictorial with many of your
>> previous posts.
>
>Really? Is it not possible that a person can consider
>multiple points of view, or must one consider just one
>POV?
A person can consider multiple points of view, but he should not state
contradictorial points of view.
>> Where do you want to go with this?
>
>Consider that:
>
>1) Current (RM) theory has not substantially changed in 30 years
Agreed
>2) The practice-environment of DBMS theory has substantially
> changed in this time, in fact one might be entitled to claim it
> has changed by a quantum leap
Because there was a gap between the creation of the Relational Model and the commercialization of the SQL DBMS.
The practice of DBMS has not substatially changed in 20 years.
> --- in the use of RDBMS
> software (ie: built in accordance to the principles of the RM).
SQL DBMS software was not built in accordance to the principles of the RM.
>3) Date openly admits that current (RM) theory is not understood
> by database professionals.
>
>You tell me what the implications are.