Partial list for Postgres: • pl/pgsql (a pl/sql clone) • pl/perl • pl/python • pl/v8 (JS, LiveScript, and CoffeeScript) • pl/java • p

Partial list for Postgres: • pl/pgsql (a pl/sql clone) • pl/perl • pl/python • pl/v8 (JS, LiveScript, and CoffeeScript) • pl/java • pl/r • pl/lua • pl/rust • pl/ruby • pl/sh • pl/scheme • pl/julia Or at least that's where you can define arbitrary procedural/functional logic for result sets within a language oriented toward set theory and transformation.