【第35题】OCP认证1Z0-071最新考试题库及答案

071考试不仅是OCP11g的考试科目，同时也是OCP 12c的考试科目，所以关心071考题的同学有很多，对此我们专门收集整理了近期071考试的原题，并对这些考题进行讲解，希望帮助广大考生顺利通过071考试。

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071考题解析-第35题、choose the best answer:

View the Exhibit and examine the structure of the ORDERS table.

Which UPDATE statement is valid?

A) UPDATE orders

SET order_date = '12-mar-2007'

AND order_total = TO_NUMBER(NULL)

WHERE order_id = 2455;

B) UPDATE orders

SET order_date = '12-mar-2007',

order_total = NULL

WHERE order_id = 2455;

C) UPDATE orders

SET order_date = TO DATE('12-mar-2007','dd-mon-yyyy'),

SET order_total = TO NUMBER(NULL)

WHERE order_id = 2455;

D) UPDATE orders

SET order_date = '12-mar-2007',

order_total IS NULL

WHERE order_id = 2455;

Answer：D

(解析：注意语法)

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