Oracle中connect,resource角色权限

1.查看所有用户：

select * from dba_users;

select * from all_users;

select * from user_users;

2.查看用户或角色系统权限：

select * from dba_sys_privs;

select * from user_sys_privs;

3.查看用户对象权限：

select * from dba_tab_privs;

select * from all_tab_privs;

select * from user_tab_privs;

4.查看所有角色：

select * from dba_roles;

5.查看用户或角色所拥有的角色：

select * from dba_role_privs;

select * from user_role_privs;

注意：

1、以下语句可以查看Oracle提供的系统权限

select name from sys.system_privilege_map

2、查看一个用户的所有系统权限(包含角色的系统权限)

select privilege from dba_sys_privs where grantee='DATAUSER'

union

select privilege from dba_sys_privs where grantee in (select granted_role from dba_role_privs where grantee='DATAUSER' );