When working with database (I'm now working with PostgreSQL), no need to mention fact that the deadlock error is one of the most problem which takes long headache time to be solved correctly.

To develop database application that use Oracle. Of course with Oracle database installed, programer must prepaire two packages provided by Oracle. One use to provide share library (*.so files) for application to run under Linux, another one is provide class header (*.h files) that programer can include in their application. We could download that two packages at http://www.oracle.com/technetwork/database/features/instant-client/index-097480.html, it's called Instant Client.