关于用户权限的问题！

--Create a login account for the 'test' user
execute sp_addlogin 'test','1234','Northwind',null
go
--Create a group
execute sp_addgroup 'testgroup'
go
--Add the test user to Database
execute sp_adduser 'test','test','testgroup'
go
grant update,insert
on customers -- YOU CAN DEFINED WHICH TABLE YOU WANT GRANT TO TEST USER
to testgroup你是这样做的吗?检查你的用户的角色。