第55題-OCP認證062考試題庫2019最新考題解析
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我要咨詢2018年的時候,OCP 11g考試題庫大更新,052 053出現了很多新題,
2019年,11g即將停考的前期,Oracle又出現了一次大變動,12c出現了很多新題,比如062 063題庫大更新
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QUESTION 55
Your database supports an online transaction processing (OLTP) application. The application is undergoing some major schema changes, such as addition of new indexes and materialized views. You want to check the impact of these changes on workload performance.
What should you use to achieve this?
A. Database replay
B. SQL Tuning Advisor
C. SQL Access Advisor
D. SQL Performance Analyzer
E. Automatic Workload Repository compare reports
Correct Answer: D
(解析:如果要比較不同環境下 sql 語句的執行性能對比,用 SQL 性能分析器是最好的選擇。)