This diagram of online database mode shows the following elements:
On the Hadoop cluster:
An arrow from input data to Oracle Loader for Hadoop.
An arrow points from job configuration to Oracle Loader for Hadoop.
An arrow points from loader map (optional) to Oracle Loader for Hadoop.
An arrow points from Oracle Loader for Hadoop to a table in an Oracle database.
An arrow points from Oracle Loader for Hadoop to a CVS or Data Pump output file.
On the Database system, an arrow points from a table in an Oracle database to Oracle Loader for Hadoop on the Hadoop cluster.