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【071考试题库】OCP-1Z0-071最新考试题库大全-第54题

【071考试题库】OCP-1Z0-071最新考试题库大全-第54题

来源:优技教育    更新时间:2019/6/5 14:56:40    阅读次数:1239

Oracle 12c的OCP考试考3科,分别是071、062、063,对于这些考题,我们专门有人负责收集整理,并由专业的老师对这些考题进行解析,希望可以帮助想考OCP的同学,这里开始介绍071的题库。

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考试题库-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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