ABAP Keyword Documentation →  ABAP Glossary → 

SAP HANA

SAP HANA is an appliance based on the SAP HANA database - a combined hardware and software system for SAP in-memory computing. In ABAP programs, SAP HANA can be accessed using secondary database connections. Alternatively, an SAP HANA database is used as a central database AS ABAP - direct access is possible here.

More