SQLgroupby报 错 选择列表中的列无效，因为该列没有包含在聚合函数或 GROUP BY 子句中

错误见图，

原因是包含SUM等聚合函数的查询语句，select 后面的字段必须要么出现在groupby中，要么出现在函数里。

按以下更改成功。

SELECT     dbo.NewquotationBill.QttDate, dbo.NewquotationBill.QttNo, dbo.NewquotationBill.Customer, dbo.NewquotationBill.ProductName, dbo.NewquotationBill.Materialcoding, 
                      dbo.NewquotationBill.Estimatedannualdosage, SUM(dbo.NewquotationList.Amount) AS Expr1, dbo.NewquotationBill.Explain, dbo.NewquotationBill.Inputman
FROM         dbo.NewquotationBill INNER JOIN
                      dbo.NewquotationList ON dbo.NewquotationBill.QttNo = dbo.NewquotationList.QttNo
GROUP BY dbo.NewquotationBill.QttDate, dbo.NewquotationBill.QttNo, dbo.NewquotationBill.Customer, dbo.NewquotationBill.ProductName, 
                      dbo.NewquotationBill.Materialcoding, dbo.NewquotationBill.Estimatedannualdosage, dbo.NewquotationBill.Explain, dbo.NewquotationBill.Inputman