Backend for Web Development using Clojure/ClojureScript

You can use many databases; if the database has an API for Java, you should be good to go. MySQL, MongoDB, Postgres, Hadoop… and more.

For a nice overview of the webstack in Clojure, check out brehaut's article on the matter.

For getting up and running quickly with Clojure and ClojureScript, try ClojureScriptOne.

There are many ways to write what you want to write; if you're already familiar with Clojure, it shouldn't be too hard to get going.

Haven't used it myself, but Datomic ( http://datomic.com/ ) looks great for anyone coming from Clojure.