ORACLE的awr资料中的db_time从哪个视图中可以查到？（）

A.dba_hist_snapshot

B.dba_hist_sys_time_model

C.dba_hist_sysstat

D.Vssession

A.AWR

B.ASH

C.ADDM

D.STATSPACK

A.html

B.text

C.csv

D.xlsx

A.6

B.7

C.5

D.8

A.@？/rdbms/admin/awrrpt.sql

B.@？/admin/awrrpt.sql

C.@？/rdbms/awrrpt.sql

D.@？/awrrpt.sql

A.ADDM的分析结果存储在AWR报告中

B.如果需要，ADDM调用其他顾问，但不提供顾问建议

C.ADDM运行在mmon自动采集AWR快照之后

D.ADDM分析只提供诊断信息，但不提供建议

E.ADDM分析需要最近的4个AWR快照

A.InsertafindingdirectiveforfutureADDMtasks

B.Createarepeatingbaselinetemplate

C.ChangetheRETENTIONsettingfortheAWRsnapshotsto7daysonMonday

D.CreateandpopulateaSQLTuningSetfromtheAWRoneveryMonday

A. It does not allow you to change the moving window size.

B. Adaptive threshold functionalities use it by default to compute statistics.

C. It is created by default with the window size being equal to the AWR retention time.

D. It is created when the first snapshot is collected by the Automatic Workload Repository (AWR).

A.大量的insert操作

B.大量索引扫描

C.大量全表扫描

D.大量的update操作

A. Compare Period ADDM report

B. AWR Compare Period report

C. Active Session History (ASH) report

D. Taking a new snapshot and comparing it with a preserved snapshot