单选题Which of the following statements allows BOB to revoke access to the SAMPLE database from user TOM?（）A REVOKE ACCESS ON DATABASE FROM USER bobB REVOKE CONNECT ON DATABASE FROM USER tomC REVOKE tom FROM ACCESS ON DATABASE BY USER bobD REVOKE tom FROM CO
题目
单选题
Which of the following statements allows BOB to revoke access to the SAMPLE database from user TOM?（）
A
REVOKE ACCESS ON DATABASE FROM USER bob
B
REVOKE CONNECT ON DATABASE FROM USER tom
C
REVOKE tom FROM ACCESS ON DATABASE BY USER bob
D
REVOKE tom FROM CONNECT ON DATABASE BY USER bob
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参考答案和解析
正确答案：
A
解析：
暂无解析