Hi, I have total 4 year of exp on ERP development & customization with sql dba & 1.5 years on sap-abap. at present i am working as sql dba. i want to change my current sql dba profile to SAP. Please tell me which is the best option for me sap-abap or sap-bi or sap-bw. is sap-bi or sap-bw are the same module ?