选择题:数据库系统而言,主要通过权限和授权来实现安全管理,其中insert权限表示()。

题目内容:

数据库系统而言,主要通过权限和授权来实现安全管理,其中insert权限表示()。

A.允许插入新数据,但不允许修改已存在的数据

B.允许创建和删除数据

C.允许修改数据,但不允许删除数据

D.允许创建新的关系

参考答案:【答案仅供学习,请勿对照自行用药等】

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