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【071题库】最新OCP-071考试题库解析-第54题

【071题库】最新OCP-071考试题库解析-第54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。

每周五晚8点,我们有免费的OCP解析公开课,地址:https://ke.qq.com/course/326223  OCP题库交流群:1015267481,验证ocp

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071题库-第54题、choose the best answer:

View the Exhibit and examine the structure of the ORDER_ITEMS and ORDERS tables.

You are asked to retrieve the ORDER_ID, PRODUCT_ID, and total price (UNIT_PRICE multiplied by QUANTITY), where the total price is greater than 50,000.

You executed the following SQL statement:

SELECT order_id, product_id, unit_price*quantity "Total Price"

FROM order_items

WHERE unit_price*quantity > 50000

NATURAL JOIN orders;

Which statement is true regarding the execution of the statement?

A) The statement would not execute because the WHERE clause is before the NATURAL JOIN clause.

B) The statement would not execute because the USING keyword is missing in the NATURAL JOIN clause.

C) The statement would execute and provide the desired result.

D) The statement would not execute because the ON keyword is missing in the NATURAL JOIN clause.

Answer:A

(解析:注意语法,where 子句应该出现在各种连接的语句后面,比如 right outer join 等等。)

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