Oracle OCP 19c 认证1Z0-083考试题库(第13题)-CUUG内部学员版083题库解析
13、choose the best answer
You notice performance degradation in your production Oracle 12c database. You want to know what caused this performance difference. Which method or feature should you use?
A. Database Replay
B. Automatic Database Diagnostic Monitor (ADDM) Compare Period report
C. Active Session History (ASH) report
D. SQL Performance Analyzer