在SQL Server 2005 express中使用连接

Question

我有一张表，我需要根据另一个表中的信息进行更新。我写了一个精选的查询，它能够很好地工作，并显示我需要摆脱的内容，但是当我尝试将其更改为更新查询时，我在Join中遇到错误。我希望有人能够向我指出一个简单的疏忽。

这里是工作的选择查询：

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 

这里是更新查询，返回一个错误：

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。试试：

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