You are encouraged to start looking into these libraries, using the hand-out sheet resources and those on the haskell.org website.
Look how much fun it is to program SQL. Three lines of code and you get an interesting answer (and those three lines would have been much cleaner and simpler if we hadn't been forced to use the CLOB datatype, which has its own strange accessor functions). Compare to Java and C where typing until your fingers fall off usually doesn't result in much of anything. SQL, Lisp, and Haskell are the only programming languages that I've seen where one spends more time thinking than typing.(emphasis added).