SQL Server老化总数不匹配

我有一个账龄查询，它按12个月、24个月和36个月的间隔对购买的物品数量及其成本进行账龄计算。该查询运行得很好，但是我的总计与用于查找某个特定供应商的总计的单个查询相比，没有加起来

见下文

    SELECT s.SupplierNumber as Supplier_Number 
    , s.suppliername as Supplier_Name
    , i.supplierpartnum as Part_No
    , SUBSTRING(e.account_code,1,5)/*+'-'+RIGHT(e.account_code,7)*/ as Account_Code
    , CASE WHEN e.reference_code = ''
        THEN 'NOREF'
        ELSE reference_code
        END as Reference_Code
    , i.Commodity
    , i.ShortDscrptn as Part_Desc
    , i.unitofmeasure as UOM
    , i.unitprice as Unit_Price
, CASE WHEN h.OrderDate >= '2012-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN COUNT(i.Quantity)
        ELSE 0 END as Annual_Qty_12
, CASE WHEN h.OrderDate >= '2011-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN COUNT(i.Quantity)
        ELSE 0 END as Annual_Qty_24 
, CASE WHEN h.OrderDate >= '2010-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN COUNT(i.Quantity)
        ELSE 0 END as Annual_Qty_36 
, CASE WHEN h.OrderDate >= '2012-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN SUM(i.UnitPrice) 
        ELSE 0 END as  Annual_Spend_12          
, CASE WHEN h.OrderDate >= '2011-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN SUM(i.UnitPrice) 
        ELSE 0 END as  Annual_Spend_24  
, CASE WHEN h.OrderDate >= '2010-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN SUM(i.UnitPrice) 
        ELSE 0 END as  Annual_Spend_36  
FROM ekp.dbo.SUPPLIER s   
JOIN ekp.dbo.ORDERHEADER h
    ON s.SupplierID = h.SupplierID
JOIN ekp.dbo.ORDERITEM i
    ON h.OrderID = i.OrderID
JOIN mgnt.dbo.ematch e
    ON h.PONumber = e.po_ctrl_num
    AND i.LineNumber = e.po_sequence_id
WHERE h.OrderDate >= '2010-01-01'
AND h.OrderDate <= '2012-12-31' 
GROUP BY s.SupplierNumber, s.SupplierName, i.SupplierPartNum,  e.account_code
, i.Commodity, i.UnitOfMeasure, i.UnitPrice, i.ShortDscrptn, h.OrderDate
, e.reference_code

上面这个查询的总数总是远远高于上面的查询。我还对整个聚合进行了汇总和计数，但它也不匹配，实际上，它生成的结果与顶部查询相同：

    , COUNT(CASE WHEN h.OrderDate >= '2012-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN i.Quantity
        ELSE 0 END) as Annual_Qty_12
, COUNT(CASE WHEN h.OrderDate >= '2011-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN i.Quantity
        ELSE 0 END) as Annual_Qty_24 
, COUNT(CASE WHEN h.OrderDate >= '2010-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN i.Quantity
        ELSE 0 END) as Annual_Qty_36 
, SUM(CASE WHEN h.OrderDate >= '2012-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN i.UnitPrice 
        ELSE 0 END) as  Annual_Spend_12         
, SUM(CASE WHEN h.OrderDate >= '2011-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN i.UnitPrice 
        ELSE 0 END) as  Annual_Spend_24 
, SUM(CASE WHEN h.OrderDate >= '2010-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN i.UnitPrice 
        ELSE 0 END) as  Annual_Spend_36

，计数（h.OrderDate>=“2012-01-01”时的情况）
而h.OrderDate='2011-01-01'
而h.OrderDate='2010-01-01'
而h.OrderDate='2012-01-01'
而h.OrderDate='2011-01-01'
而h.OrderDate='2010-01-01'
而h.OrderDate我猜测试是错误的：第一次查询时，您在Excel中的值相加是错误的。以下是在Excel中相加值的三种有效方法：


筛选值并突出显示列。Excel将在选择单元格（Excel 2007及更高版本）中添加值
使用“sumif（）”或“sum（{}）”添加给定供应商的总计
使用数据透视表

分组依据的结果不一定要排序。它们看起来可能已排序，但仍然可能未排序。进行聚合的一种方法是对数据进行排序，然后选择结果。但是，还有其他方法，例如哈希聚合。而且，在多线程环境中，您不知道哪个线程将返回值以什么顺序发布。
您可以发布一些示例数据吗？我可以看到有几个地方可能会将其丢弃，但这实际上取决于您的数据的性质……查询之间的聚合深度不同。从顶部删除“选择”和“分组依据”中除“供应商编号”之外的所有内容，然后查看其总数。此外，您可以可以轻松地将其更改为动态SQL，这样您就不必硬编码日期，也不需要每年进行存储过程维护。以下是当前输出：@PuroRock…我指的是SupplierNumber--where中使用的变量。而且，不，
group by
不需要（必要）对结果进行排序。如果希望结果按特定顺序排列，则需要使用
orderby
子句。
    , COUNT(CASE WHEN h.OrderDate >= '2012-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN i.Quantity
        ELSE 0 END) as Annual_Qty_12
, COUNT(CASE WHEN h.OrderDate >= '2011-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN i.Quantity
        ELSE 0 END) as Annual_Qty_24 
, COUNT(CASE WHEN h.OrderDate >= '2010-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN i.Quantity
        ELSE 0 END) as Annual_Qty_36 
, SUM(CASE WHEN h.OrderDate >= '2012-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN i.UnitPrice 
        ELSE 0 END) as  Annual_Spend_12         
, SUM(CASE WHEN h.OrderDate >= '2011-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN i.UnitPrice 
        ELSE 0 END) as  Annual_Spend_24 
, SUM(CASE WHEN h.OrderDate >= '2010-01-01'
        AND h.OrderDate <= '2012-12-31'
        THEN i.UnitPrice 
        ELSE 0 END) as  Annual_Spend_36