oracleDBA使用的几个基本语句

--一个用户所拥有的角色
select granted_role from dba_role_privs where
grantee='DBA';
---一个角色所包含的系统权限
select * from dba_sys_privs where grantee ='DBA'
--select * from role_sys_privs where role='RESOURCE';
--SELECT ROLE ,COUNT(*) FROM ROLE_SYS_PRIVS GROUP BY
ROLE;
--一个角色所包含的对象权限
select * from dba_tab_privs where grantee='DBA'
--一个用户具有的权限
select * from dba_sys_privs where grantee IN (select
granted_role from dba_role_privs where grantee='DBA');
--所在数据库名称
select * from global_name; 

---oralce 中有多少角色
select * from dba_roles;
---oracle 中的系统权限
select * from system_privilege_map order by name;
--oracle 中的对象权限
select distinct privilege from dba_tab_privs;