OCP的071考试难考?以前确实不容易通过,但现在我们对071考试题库进行了收集整理,并给出了答案,已经帮助很多考生顺利通过了071考试。
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071题库整理-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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