为多关系表创建视图sql-server？

Question

我想创建一个视图以显示该部门的部门名称，员工数，总薪水和项目数

这是我的查询，但没有返回数据：

SELECT  d.[DeprtmentName] ,
    count(e.[Id]) AS Employees,
    sum(e.[Salary]) AS [Total Salary],
    count(p.[Id]) AS Pojects
FROM [dbo].[Department] as d
join [dbo].[Employee] as e on d.id = e.[DeptId]
join [dbo].[ProjectEmployee] as p on e.id = p.[EmployeeId]
join [dbo].[Project] on p.[ProjectId] = [dbo].[Project].[Id] 
group by (d.[DeprtmentName])