Third, and more significantly for most companies already using Oracle Database: the new big data environment connects to the existing Oracle database environment at the data management software level. So, Oracle Big Data appliance can be used for staging and ETL processes that need to occur upstream of the data warehouse. The included Oracle Loader for Hadoop can then be used to transfer the data in parallel into Oracle Exadata. Oracle Exadata can readily use data that comes from an Oracle Big Data Appliance in conjunction with data already in the data warehouse.