Re: theory and practice: ying and yang

"David Cressey" <david.cressey_at_earthlink.net> wrote in message news:0o1me.11931$w21.9892_at_newsread3.news.atl.earthlink.net...
>
> "mountain man" <hobbit_at_southern_seaweed.com.op> wrote in message
> news:2yWke.449$BR4.271_at_news-server.bigpond.net.au...
>> It is clear that CJ Date considers theory can be disassociated
>> from practice:
>
>
> I disagree.

http://www.oreilly.com/catalog/databaseid/chapter/ch01.pdf

What is the RM? (good theory)
SQL cant jump this hoop (theory)
Tutorial D to the rescue (bigger theory)

If you disagree, which of the 25 chapters of his "Introduction to Database System" (7th Ed) would you put forward as the least theoretical, and most concerned with practice?

> On the quotes, how about,
>
> "In theory, there is no difference between theory and practice. In
> practice, there is."
>
> I don't know the source.

http://www.google.com.au/search?as_q=&num=100&hl=en&btnG=Google+Search&as_epq=there+is+no+difference+between+theory+and+practice&as_oq=&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&as_occt=any&as_dt=i&as_sitesearch=&safe=images

Is variously ascribed.

-- 
Pete Brown
IT Managers & Engineers
Falls Creek
Australia
http://www.mountainman.com.au/taotrans.html