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分类： Oracle
2018-07-25 11:36:05
21、Which two are true about roles?
A) A role can be password-protected.
B) A role can be granted to another role.
C) Only one default role can be granted to a user.
D) A role can be granted only multiple system privileges not multiple object privileges.
E) A role can be created only by a user with the SYSDBA privilege.
Answer:AB
