SAP ABAP(Innovative business application programming) can be a programming language for SAP software. we do coding regardless of underlying database. After the evolution of HANA database,each of the Oracle db has actually been changed by HANA DB. HANA db is column oriented and facts will get stored in RAM ,the http://elliottdzuoj.pointblog.net/abap-on-hana-schooling-s4-hana-tutorial-32966421