ClojureQL allows you to express powerful database queries through simple, elegant, Clojure expressions. Out of the box it compiles to SQL92 which ensures compatability with PostgreSQL and MySQL.

ClojureQLs strength lies in its implementation of the primitives defined in Relational Algebra which allows queries to be composed freely.

Infographic visualizing the relationship between SQL and MapReduce on MongoDB

Samples are provided to allow reader to get basic idea of a potential attack and almost every section includes a brief information about itself.