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Mark A wrote:
>2. The concept of primary keys and foreign key >relationships "have"
always
>existed in relational databases, but they were not >part of any
relational
>SQL syntax that I know about until about 1988.
At that time, it was not yet certain that SQL was going to be the primary data interchange language. Other languages had other syntax.
I jumped on the bandwagon at that time, but merely because Oracle/unix appeared headed towards commercial success (dominance was not assured). I still don't think SQL is the best language for what it is used for, but it's too late to change now.
jg
-- @home.com is bogus. "There were an average of 1.3 changes every day from the FBI, for a total of 399 changes during the period." Arnold L. Punaro http://www.signonsandiego.com/uniontrib/20050205/news_1b5saic.htmlReceived on Mon Feb 07 2005 - 15:43:21 CST