如何創建只讀權限oracle賬戶

1. 創建角色 
   CREATE ROLE SELECT_ROLE 
   2.給角色分配權限 
   grant SELECT ANY DICTIONARY to SELECT_ROLE; 
   grant SELECT ANY TABLE to SELECT_ROLE; 
   grant SELECT ANY TRANSACTION to SELECT_ROLE; 
   grant SELECT ANY SEQUENCE to SELECT_ROLE; 
   3.把角色賦予指定賬戶 
   grant SELECT_ROLE to user; 
   4.刪除角色 
   drop role SELECT_ROLE;

   5、創建用戶

   create user db_hxzg identified by 123 

   6、賦給賬號連接權限

   grant connect, resource to aaaa;
   

   grant create session to aaaa;
   

7.檢查角色的權限 
select * from dba_sys_privs where grantee=’SELECT_ROLE’

測試權限的時候需要加上用戶的對象例如 
select count(*) from hr.ex_user;