This week's giveaway is in the EJB and other Java EE Technologies forum. We're giving away four copies of EJB 3 in Action and have Debu Panda, Reza Rahman, Ryan Cuprak, and Michael Remijan on-line! See this thread for details.
There is one JDBC-LDAP bridge availble from OctetString, which helps you access an LDAP server just like any RDBMS database. LDAP JDBC Bridge But, I am not sure if it supports "ORDER BY" clause. Sometime back, when I was trying, I found that it had some limitations in using the WHERE clause. I don't remember what exactly was the issue. Try your luck anyways.