Oracle查看用戶、用戶權限、角色

一、查看所有用戶

SELECT * FROM DBA_USERS;
SELECT * FROM ALL_USERS;
SELECT * FROM USER_USERS;

二、查看用戶系統權限

SELECT * FROM DBA_SYS_PRIVS;
SELECT * FROM USER_SYS_PRIVS;

三、查看用戶對象或角色權限

SELECT * FROM DBA_TAB_PRIVS;
SELECT * FROM ALL_TAB_PRIVS;
SELECT * FROM USER_TAB_PRIVS;

四、查看所有角色

SELECT * FROM DBA_ROLES;

 五、查看用戶或角色所擁有的角色

SELECT * FROM DBA_ROLE_PRIVS;
SELECT * FROM USER_ROLE_PRIVS;