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【071题库】最新OCP-071考试题库解析-第22题

【071题库】最新OCP-071考试题库解析-第22题

071考试是OCP考试科目的一种,由于071考题多变,我们专门收集整理了最新的考试题库,并对这些考题进行讲解,希望可以帮助广大考生。

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071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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