單項(xiàng)選擇題

Which of the following statements allows USER1 to take away read access on the table ORG.TAB1 from USER2?（）

A.REVOKE SELECT FROM user2 ON TABLE org.tab1
B.REVOKE SELECT ON TABLE org.tab1 FROM user2
C.REVOKE READ ACCESS FROM user2 ON TABLE org.tab1
D.REVOKE READ ACCESS ON TABLE org.tab1 FROM user2

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單項(xiàng)選擇題

On which of the following database objects may the SELECT privilege be controlled?（）

A.Sequence
B.Schema
C.Group
D.View

單項(xiàng)選擇題

A "trusted" client needs to communicate with a server that has been configured to use CLIENT authentication. Which of the following will be used to verify passwords?（）

A.User ID/password file
B.Communications layer
C.Client applications
D.Operating system

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Which of the following statements allows USER1 to take away read access on the table ORG.TAB1 from USER2?（）

你可能感興趣的試題

On which of the following database objects may the SELECT privilege be controlled?（）

A "trusted" client needs to communicate with a server that has been configured to use CLIENT authentication. Which of the following will be used to verify passwords?（）