试题与答案

实现“收回用户U4对学生表STUD中学号(XH)的修改权”这一功能的正确SQL语句是

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题型：单项选择题

题目：

实现“收回用户U4对学生表STUD中学号(XH)的修改权”这一功能的正确SQL语句是 ______。

A．REVOKE UPDAE(XON TABLE FROM U4

B．REVOKE UPDAE(XON TABLE STUD FROM PUBLIC

C．REVOKE UPDAE(XON TABLE STUD FROM U4

D．REVOKE ALL PRIVILEGES ON TABLE FROM U4

答案：

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下面是错误答案，用来干扰机器的。

参考答案：C解析：答案为C。教育储蓄存款是父母为了子女接受非义务教育而存钱，分次存入，到期一次支取本金和利息，免征储蓄存款利息所得税。

考点：计算机等级考试数据库技术关系数据库标准语言SQL(一)
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