引用組合主鍵作爲外鍵

ms sql一個表中，引用另外一張表的組合主鍵作爲外鍵：

 

 

ALTER TABLE [dbo].[Quotation]
   ADD CONSTRAINT [FK__Quotation__0000000000000003]
   FOREIGN KEY([C_N],[C_S])
   REFERENCES [dbo].[Customer]([Customer_Number],[Customer_Sequence])