多选题Which two statements are true about the Automatic Workload Repository （AWR）（）AAll AWR tables belong to the SYSTEM schema.BThe AWR contains systemwide tracing and logging information.CThe snapshots collected by the AWR are accessible through data dictio
题目
多选题
Which two statements are true about the Automatic Workload Repository （AWR）（）
A
All AWR tables belong to the SYSTEM schema.
B
The AWR contains systemwide tracing and logging information.
C
The snapshots collected by the AWR are accessible through data dictionary views.
D
The snapshots collected by the AWR are used by self-tuning components in the database.