In DBSource, driver name is “Oracle”, and options is the SID
                  of the Oracle database instance you want to use. DBUsername is the Oracle
                  user name, and DBAuth is the password for the Oracle user.
To create a
               new database, see 
goodies/oracleCreate.sql for more
               information.
               
Configure your SQL clause like this:
               DBSource    dbi:Oracle:sid
DBUsername  user
DBAuth      password
               
                  Tip
                  To specify server name and
                     port directly without $ORACLE_HOME/network/admin/tnsnames.ora,
                     use:
                     
dbi:Oracle:service_name=xe;host=10.20.30.40;port=1521