[eimrine]

It may be great to have a functional language which will write you an SQL query, but I have a hard time to image how else are you going to use a language for describing immutable data structures to edit mutable things.

Maybe you will be interested in Erlang as a functional way to manage something as mutable as network stream.

Maybe you need to learn about array programming languages (APL, J, K). They say about SQL as "to suck data throw a thin pipe" after APL experience.

Maybe you will like dealing with pure AST (I'm talking about Lisp) with no databases at all.