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- 单项选择题 The Automatic Database Diagnostic Monitor （ADDM） analysis runs every 60 minutes on your database. Your database is facing a series of interrelated problems over a period of two hours. You need to ensure that the ADDM analysis is run over a time span of two hours in future. What would you do？（）
A、 Create two custom ADDM tasks.
B、 Modify the AWR snapshot time interval to two hours.
C、 Create a new scheduler window for a time period of two hours.
D、 Modify the Automatic Workload Repository （AWR） snapshot retention period to two hours.
- B
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