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【071考试】最新OCP认证071考试题库整理-第54题

【071考试】最新OCP认证071考试题库整理-第54题

来源:CUUG培训-优技培训    更新时间:2019/6/5 15:10:09    阅读次数:

071考试题库之前是比较稳定的,但随着Oracle的调整,071考试不断的增加新的考题,增加了考试的难度,所以我们专门收集整理了这些考试,并对这些考题进行解析,希望可以对考生有帮助。

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-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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