Which rules does SAP recommend to improve the performance of ABAP reports on SAP HANA? Note: There are 2 correct answers to this question.
A. Ensure the WHERE clause contains at least one index field.
B. Use SELECT FOR ALL ENTRIES instead of a nested SELECT statement.
C. Perform all calculations and aggregations in the ABAP layer.
D. Ensure the access to buffered tables uses the SAP table buffer.
