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You work as a database administrator for Certkiller .com. You find that reports are running for a long time in your data warehousing applications. You suspect a lack of indexes is the reason for the performance degradation.  Which advisory component would you refer to， in order to determine the appropriate indexes？（）
A:Memory Advisors
B:Segment Advisors
C:SQL Tuning and Access Advisors
D:Automated Workload Repository （AWR）
E:Automatic Database Diagnostic Monitor （ADDM）

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出自：Oracle认证

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