OCP认证是Oracle非常重要的一个认证,对于11g版本来说,考试科目为071、052、053,对于12c版本来说,考试科目为071、062、063,可见071是个很重要的考试,这里我们收集了近期071考试的原题,分享给大家。
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071考题整理-第27题、choose the best answer:
View the Exhibit and examine the structure of the CUSTOMERS table.
Evaluate the following SQL statement:
SQL> SELECT cust_city, COUNT(cust_last_name)
FROM customers
WHERE cust_credit_limit > 1000
GROUP BY cust_city
HAVING AVG(cust_credit_limit) BETWEEN 5000 AND 6000;
Which statement is true regarding the outcome of the above query?
A) It executes successfully.
B) It returns an error because WHERE and HAVING clauses cannot be used in the same SELECT statement.
C) It returns an error because WHERE and HAVING clauses cannot be used to apply conditions on the same column.
D) It returns an error because the BETWEEN operator cannot be used in the HAVING clause.
Answer:A
(验证过)
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