【071考试题库】OCP-1Z0-071最新考试题库大全-第22题

来源：优技教育更新时间：2019/5/23 9:30:06 阅读次数：646

Oracle 12c的OCP考试考3科，分别是071、062、063，对于这些考题，我们专门有人负责收集整理，并由专业的老师对这些考题进行解析，希望可以帮助想考OCP的同学，这里开始介绍071的题库。

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071考试题库-第22题、choose the best answer:

View the Exhibit and examine the structure of the CUSTOMERS table.

CUSTOMER_VU is a view based on CUSTOMERS_BR1 table which has the same structure as CUSTOMERS table.

CUSTOMERS needs to be updated to reflect the latest information about the customers.

What is the error in the following MERGE statement?

MERGE INTO customers c

USING customer_vu cv

ON (c.customer_id = cv.customer_id)

WHEN MATCHED THEN

UPDATE SET

c.customer_id = cv.customer_id,

c.cust_name = cv.cust_name,

c.cust_email = cv.cust_email,

c.income_level = cv.income_level

WHEN NOT MATCHED THEN

INSERT VALUES(cv.customer_id,cv.cust_name,cv.cust_email,cv.income_level)

WHERE cv.income_level >100000;

A) The INTO clause is misplaced in the command.

B) The WHERE clause cannot be used with INSERT.

C) CUSTOMER_VU cannot be used as a data source.

D) The CUSTOMER_ID column cannot be updated.

Answer:D

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