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Oracle培训12c OCP认证062考试题库解析-第48题

时间:2019-07-24 来源:

2018年的时候,OCP 11g考试题库大更新,052 053出现了很多新题,

2019年,11g即将停考的前期,Oracle又出现了一次大变动,12c出现了很多新题,比如062 063题库大更新

OCP解析公开课时间:【每周五晚8点】

OCP解析公开课地址:https://ke.qq.com/course/326223

OCP解析群资料分享:1015267481 验证:ocp

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QUESTION 48

You want to capture column group usage and gather extended statistics for better cardinality estimates for the CUSTOMERS table in the SH schema.

Examine the following steps:

1. Issue the SELECT DBMS_STATS.CREATE_EXTENDED_STATS (`SH', `CUSTOMERS') FROM dual statement.

2. Execute the DBMS_STATS.SEED_COL_USAGE (null, `SH', 500) procedure.

3. Execute the required queries on t he CUSTOMERS table.

4. Issue the SELECT DBMS_STATS.REPORT_COL_USAGE (`SH', `CUSTOMERS') FROM dual statement.

Identify the correct sequence of steps.

A. 3, 2, 1, 4

B. 2, 3, 4, 1

C. 4, 1, 3, 2

D. 3, 2, 4, 1

Correct Answer: B

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