If you want connect OpenIDM to an Oracle Database using, for instance, the ScriptedSQL connector, you need an OSGI bundle of Oracle JDBC. Unfortunately, Oracle does not provide such a driver, you have to build it by yourself. The most reliable way to do so is to use the Eclipse IDE to create a plugin project. This method is described step by step and in detail on this page. Following that tutorial will make you generate and import the Oracle Database JDBC bundle in Felix which is the OSGI container embedded in OpenIDM.