Re: Announcing New Blog
Date: Tue, 17 Jan 2006 12:28:49 GMT
mountain man wrote:
> "Christopher Browne" <cbbrowne_at_acm.org> wrote in message
>>>Database systems is an evolving environment. >>>Date's pedagogy on the RM is not. >>>It has been static for nigh on 30 years. >> >>The thing is, pedagogy needs to connect with theory. >>
Just as practice needs to connect to reality -- as illuminated through theory.
> It hasn't.
Think of it as you do our understanding of gravity; once you get it right, there's no need to change it.
>>In a way, it's like the challenge of getting a Ph.D in Shakespearean >>literature. Doing a Ph.D requires having something new and novel to >>say about the area of study. As you approach 500 years since the >>death of the author, it gets increasingly difficult to find anything >>new.
> Database systems are not the product of one author
> and are constantly evolving; the theory is not keeping
Please don't confuse database implementations with theory. Few systems have succeeded in reaching first base.
>>I don't see that anything much new has come up lately that would cause >>Date's pedagogy to need to change. Every couple years I browse TODS >>and basically see nothing that seems of practical importance, and even >>less that extends the RM.
> Database systems since the late 90's have acquired a class
> of objects termed stored procedures. Essentially these are
> program objects written in the SQL of the RDBMS and
> are stored within the database.
> There is in progress a migration of lines of code from the
> application software environment (external to the database)
> to the stored procedure environment (internal to the database)
> and this needs to be recognised.
> We need a theory not just of the data, but of the data
> and its processing, which will address stored procedure
> objects (ie: processes) which are today, and not 30 years
> ago, capable of being stored and managed within the
> database systems environment.
For this, I suggest Eric Hehner.
> Here are some relevant articles with further info:
Received on Tue Jan 17 2006 - 13:28:49 CET