大数据就业实战培训 Oracle就业实战培训

CUUG,以就业为导向,让学员学到真正实用的技术

当前位置: CUUG培训-优技培训 >> 071考试 >

【071考试】最新OCP认证071考试题库整理-第38题

【071考试】最新OCP认证071考试题库整理-第38题

来源:CUUG培训-优技培训    更新时间:2019/5/27 14:01:19    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

-------------------------------------------------------

071考试-第38题、choose two

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

You need to remove from the ORDER_ITEMS table those rows that have an order status of 0 or 1 in the ORDERS table.

Which two DELETE statements are valid? (Choose two.)

A) DELETE

FROM order_items

WHERE order_id IN (SELECT order_id

FROM orders

WHERE order_status in (0,1));


B) DELETE *

FROM order_items

WHERE order_id IN (SELECT order_id

FROM orders

WHERE order_status IN (0,1));


C) DELETE

FROM (SELECT * FROM order_items i,orders o

WHERE i.order_id = o.order id AND order_status IN (0,1));


D) DELETE FROM order_items i

WHERE order_id = (SELECT order_id FROM orders o

WHERE i.order_id = o.order_id AND order_status IN (0,1));

Answer:AC

(解析:B 和 C 语法不对,可以实验,都会报错)

071考试
大数据课程
WDP
oracle机构
oracle认证
oracle课程
oracle视频
CUUG就业实战培训
CUUG与ORACLE公司建立最核心、最权威、最深层次的战略合作伙伴关系;
CUUG是唯一一家只做DBA就业培训和oracle认证的授权机构,28年培养数万名oracle技术人才;
CUUG金牌讲师授课,来自一线的资深ORACLE OCM技术专家团队;
CUUG顶尖完善的学习体系,以甲骨文原厂ORACLE数据库核心技术为教学课程;

报名入口 点击进入

课程咨询:400-0909-964

考试咨询:400-0909-964

企业QQ:800060152

E-mail:cuug_bj@cuug.com