choose four
Which four are true about performance-related Oracle tools?
A.The Automatic Database Diagnostic Monitor (ADDM) Compare Period report can compare two consecutive periods. B.SQL Performance Analyzer can suggest schema changes. C.SQL Performance Analyzer can identify regressed SQL statements. D.Database Replay always uses one replay client for all the original database sessions. E.Database Replay always uses one replay client for each original database session. F.The Automatic Database Diagnostic Monitor (ADDM) Compare Period report can compare two non-consecutive periods. G.The Active Session History (ASH) report is based on wait event samples.正确答案ABDG
