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A redaction policy was added to the SAL column of the SCOTT.EMP table: All users have their default set of system privileges. For which three situations will data not be redacted?（）
A:SYS sessions, regardless of the roles that are set in the session
B:SYSTEM sessions, regardless of the roles that are set in the session
C:SCOTT sessions, only if the MGR role is set in the session
D:SCOTT sessions, only if the MGR role is granted to SCOTT
E:SCOTT sessions, because he is the owner of the table
F:SYSTEM session, only if the MGR role is set in the session

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出自：Oracle认证

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