The Oracle JDBC for Rdb Native Driver that connects directly to Rdb SQL via a native API. This driver requires an Rdb client installation, and therefore is Rdb-specific and not suitable for applets. The Native driver, written in a combination of Java and C, converts JDBC invocations to calls to SQLMOD modules, using native methods to call C-entry points.
The Oracle JDBC for Rdb Driver uses the Rdb libraries on the client machine on which it is installed.