071考试既是ocp11g的考试科目,又是ocp12c的考试科目,所以关注的人很多,由于071考试题多变,我们专门收集了近期的071考试原题,并对071考试进行了讲解,分享给大家。
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071考试原题-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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