A.ADMIN B.ALL C.PUBLIC D.USERS
A.ALTER USER B.REVOKE C.REMOVE D.DROP
A.不執(zhí)行任何操作。Audrey做為數據庫用戶,他的用戶帳戶已自動被授予對所有數據庫對象的SELECT權限 B.GRANT SELECT ON employees_viewTO public C.GRANT SELECT ON employees_viewTO audrey D.GRANT SELECT ON employees AND employees_view TO audrey