在SQL Server 2005 express中使用連接

Question

我有一張表，我需要根據另一個表中的信息進行更新。我寫了一個精選的查詢，它能夠很好地工作，並顯示我需要擺脫的內容，但是當我嘗試將其更改爲更新查詢時，我在Join中遇到錯誤。我希望有人能夠向我指出一個簡單的疏忽。

這裏是工作的選擇查詢：

select * 
from CustPayShdul 
JOIN ARcreditapply 
ON ARcreditapply.AplyedRefNo = CustPayShdul.ReferNo AND ARcreditapply.AplyedLocation = CustPayShdul.LocationNo 
AND ARcreditapply.sequence2 = CustPayShdul.Paysequence 
where ARcreditapply.PaidDate < '1/1/2012' and ARcreditapply.PaidDate < CustPayShdul.InvDate 

這裏是更新查詢，返回一個錯誤：

update custpayshdul 
set custpayshdul.payablebalance = custpayshdul.amount 
JOIN ARcreditapply 
ON ARcreditapply.AplyedRefNo = CustPayShdul.ReferNo AND ARcreditapply.AplyedLocation = CustPayShdul.LocationNo 
AND ARcreditapply.sequence2 = CustPayShdul.Paysequence 
where ARcreditapply.PaidDate < '1/1/2012' and ARcreditapply.PaidDate < CustPayShdul.InvDate 

Answer 1

你缺少你加入之前FROM custpayshdul。試試：

update custpayshdul 
set payablebalance = custpayshdul.amount 
FROM custpayshdul 
JOIN ARcreditapply 
ON ARcreditapply.AplyedRefNo = CustPayShdul.ReferNo AND ARcreditapply.AplyedLocation = CustPayShdul.LocationNo 
AND ARcreditapply.sequence2 = CustPayShdul.Paysequence 
where ARcreditapply.PaidDate < '1/1/2012' and ARcreditapply.PaidDate < CustPayShdul.InvDate