oracle中查看用戶權(quán)限

1.查看所有用戶：
  select * from dba_users;
  select * from all_users;
  select * from user_users;

2.查看用戶或角色系統(tǒng)權(quán)限：
  select * from dba_sys_privs;
  select * from user_sys_privs;

3.查看角色所包含的權(quán)限
sql>select * from role_sys_privs;

4.查看用戶對象權(quán)限：
  select * from dba_tab_privs;
  select * from all_tab_privs;
  select * from user_tab_privs;

5.查看所有角色：
  select * from dba_roles;

6.查看用戶或角色所擁有的角色：
  select * from dba_role_privs;
  select * from user_role_privs;

注意：

1、以下語句可以查看Oracle提供的系統(tǒng)權(quán)限

select name from sys.system_privilege_map