Which two are true about the Automatic Database Diasnostic Monitor
(ADDM)? (Choose two.)
A.It analyzes a period of time corresponding to the 12 hours of activity. B.It runs automatically after each AWR snapshot. C.A DBA can run it manually. D.Results are written to the alert log. E.It analyzes a period of time corresponding to the last day of activity.正确答案BC
