I am new to SAP. I have a small query. sorry for such a question.
is SAP R/3 and SAP ECC is database like oracle or DB2 ?
or its just a top up to be installed on on the database like Oracle or DB-2 .
Means Case 1 - can i have R/3 as my database and top of it i have SAP HR , SAP MM.
or CASE - 2 i must need to have Oracle / DB2 at the backend and top of it i need SAP R/3 and then SAP HR , SAP MM