SQL Server：查看数据库用户权限

select DbRole = g.name, MemberName = u.name, MemberSID = u.sid
  from sys.database_principals u, sys.database_principals g, sys.database_role_members m
 where g.principal_id = m.role_principal_id
   and u.principal_id = m.member_principal_id
 order by 1, 2
go

2. 查看 SQL 2005 登陆帐户所属服务器角色
use master
go

select SrvRole = g.name, MemberName = u.name, MemberSID = u.sid
  from sys.server_principals u, sys.server_principals g, sys.server_role_members m
 where g.principal_id = m.role_principal_id
   and u.principal_id = m.member_principal_id
  order by 1, 2
go

3. 查看 SQL 2005 用户被赋予的权限
use yourdb
go

exec sp_helprotect @username = 'user name'
go