Learn Datalog Today by Jonas Enlund.
From the homepage:
Learn Datalog Today is an interactive tutorial designed to teach you the Datomic dialect of Datalog. Datalog is a declarative database query language with roots in logic programming. Datalog has similar expressive power as SQL.
Datomic is a new database with an interesting and novel architecture, giving its users a unique set of features. You can read more about Datomic at http://datomic.com and the architecture is described in some detail in this InfoQ article.
Table of Contents
You have been meaning to learn Datalog but it just hasn’t happened.
Now is the time to break that cycle and do the deed!
This interactive tutorial should ease you on your way to learning Datalog.
It can’t learn Datalog for you but it can make the journey a little easier.