Oracle OCP 082知识
剩余时间：
第 39 题 (多选题)：
Which three statements are true about roles.
A. Roles must be password protected.
B. Object privileges may not be granted to roles.
C. The SET ROLE statement can disable one or more roles for a session.
D. Roles may be granted to roles.
E. All roles granted to a user are set on by default when the user logs in.
F. The SET ROLE statement can enable one or more roles for a session.
显示答案
正确答案：
B,D,E
解析：
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