Sql 计算联接表中的第一个表

我的sql查询有问题。我有两张桌子（a.销售，b.销售详情）。对于行：

Sales                  SalesDetail
------                 -----------
SaleNo  : MakeDate     IDSalesDetail: SaleNo : ItemCode : ItemPrice : ItemQty
--------:---------     -------------:--------:----------:-----------:--------:      
    1   :12/18/2015         1       :   1    :   001    :   100     :   5
    2   :12/28/2015         2       :   2    :   001    :   100     :  10
    3   :01/08/2016         3       :   3    :   001    :   100     :  20
                            4       :   2    :   002    :    50     :  10
                            5       :   1    :   002    :    50     :   5

我需要提供如下结果的查询

TotalReceipt : Year  : Amount :
-------------:-------:--------:
      2      : 2015  : 2250   :
      1      : 2016  : 2000   :

我使用了这个查询

SELECT COUNT(Sales.SaleNo) AS TotalReceipt, 
       FORMAT(Sales.MakeDate, 'yyyy') AS [Year], 
       SUM(SalesDetail.ItemQty * SalesDetail.ItemPrice) AS Amount
FROM (Sales INNER JOIN SalesDetail ON Sales.SaleNo = SalesDetail.SaleNo)
GROUP BY FORMAT(Sales.MakeDate, 'yyyy')

但它给了我这个

TotalReceipt : Year  : Amount :
-------------:-------:--------:
      4      : 2015  : 2250   :
      1      : 2016  : 2000   :

因为

计数（*）

会影响SalesDetail表

如果有人能解决我的问题，我将不胜感激

---

谢谢，祝你今天愉快

尝试在计数时使用distinct，如：

SELECT COUNT(DISTINCT SalesDetail.NoSale) AS TotalReceipt, 
FORMAT(Sales.MakeDate, 'yyyy') AS [Year], 
SUM(SalesDetail.ItemQty * SalesDetail.ItemPrice) AS Amount
FROM (Sales INNER JOIN SalesDetail ON Sales.SaleNo = SalesDetail.SaleNo)
GROUP BY FORMAT(Sales.MakeDate, 'yyyy')

---

尝试在计数时使用distinct，如下所示：

SELECT COUNT(DISTINCT SalesDetail.NoSale) AS TotalReceipt, 
FORMAT(Sales.MakeDate, 'yyyy') AS [Year], 
SUM(SalesDetail.ItemQty * SalesDetail.ItemPrice) AS Amount
FROM (Sales INNER JOIN SalesDetail ON Sales.SaleNo = SalesDetail.SaleNo)
GROUP BY FORMAT(Sales.MakeDate, 'yyyy')

---

我自己刚刚找到了我自己答案的公式，如果你想知道怎么做，请检查一下

SELECT COUNT(*) AS TotalReceipt, Format(MakeDate, 'yyyy') AS [Year], SUM(Total) AS Amount
FROM (        
             SELECT  SaleNo, SUM(ItemQty * ItemPrice) AS Total
                      FROM            SalesDetail
                      GROUP BY SaleNo) DetailSum 
INNER JOIN Sales ON Sales.SaleNo = DetailSum.SaleNo
GROUP BY Format(MakeDate, 'yyyy')

---

我自己刚刚找到了我自己答案的公式，如果你想知道怎么做，请检查一下

SELECT COUNT(*) AS TotalReceipt, Format(MakeDate, 'yyyy') AS [Year], SUM(Total) AS Amount
FROM (        
             SELECT  SaleNo, SUM(ItemQty * ItemPrice) AS Total
                      FROM            SalesDetail
                      GROUP BY SaleNo) DetailSum 
INNER JOIN Sales ON Sales.SaleNo = DetailSum.SaleNo
GROUP BY Format(MakeDate, 'yyyy')

查询表达式“COUNT（DISTINCT SalesDetail.NoSale）”中出现语法错误（缺少运算符）。我在查询表达式“COUNT（DISTINCT SalesDetail.NoSale）”中使用Access 2007 FYISyntax错误（缺少运算符）。我正在使用Access 2007仅供参考