如何创建只读权限oracle账户-同义词

另见：http://blog.csdn.net/chzhqgood/article/details/52700302
http://blog.csdn.net/louwzh/article/details/40785183
1.创建角色 
CREATE ROLE SELECT_ROLE 

2.给角色分配权限 
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.把角色赋予指定账户 
grant SELECT_ROLE to user; 

4.删除角色 
drop role SELECT_ROLE;

5.检查角色的权限 
select * from dba_sys_privs where grantee=’SELECT_ROLE’

测试权限的时候需要加上用户的对象例如 
select count(*) from hr.ex_user;