Provides a real-time access to data located outside of the SAP HANA database, without having to replicate the data to SAP HANA (physical data movement is not supported), so it is a data federation tool. Once you have configured XXXXXXXX you can read as well as update the data using virtual tables in remote sources. Virtual table can be manipulated by SAP HANA just like an ordinary table, which means the operations, such as select, update, insert, delete, and so on, are all available for virtual table. It can be used in calculation or CDS views or it can feed data to BW aDSO objects in BW/4HANA application.