Below are several examples of connecting to a database of JDBC through Clojure. They all depend on the Clojure Contrib library org.clojure/java.jdbc. Also, you need to have the proper JDBC jar in the class path. (use 'clojure.java.jdbc) (def db {:classname "com.microsoft.jdbc.sqlserver.SQLServerDriver" :subprotocol "sqlserver" :subname "//server-name:port;database=database-name;user=sql-authentica