Every once in a while the Grumpy Old DBA is actually happy. NEOOUG is very happy to be hosting soon Chris Date ... yes That Chris Date one of the big minds behind relational database theory.
So that's good ... details are here https://www.neooug.org/DateSeminar/ChrisDate_SQL_and_relational_theory.htm
In Cleveland on Oct 22/23/23 2013 and cost is very very reasonable.
Not many spots left in this class it is going to sell out soon so act soon or ... well buy his book.