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(shù)據(jù)庫(kù)用戶,他的用戶帳戶已自動(dòng)被授予對(duì)所有數(shù)據(jù)庫(kù)對(duì)象的SELECT權(quán)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