Question

我有下表，其中包含来自连锁店组的产品销售数据。数据既大又丑，但我能从商店获得它的唯一方法。有关信息，该表目前拥有2200万条记录，每天增长约30万，这一增长率将按月呈指数增长约100％。

Store_Purchases(
[ID] [int] IDENTITY(1,1) NOT NULL,
[storecode] [int] NULL,
[dtDatum] [datetime] NULL,
[Barcode] [varchar](50) NULL,
[Desc] [varchar](100) NULL,
[qty] [int] NULL,
[amount] [money] NULL,
[TillslipID] [int] NULL)

根据日期范围内所有销售额的总和，我需要从中获取的查询是500强产品。对于这些产品中的每一种，我需要显示条形码，描述，销售数量的总和，销售金额的总和，以及产品所用的直至滑动的数量，最后是所有产品的总和。

到目前为止，我已设法提出以下内容。此查询需要2m20s才能在我的服务器上执行，我认为“Basket Sum”值不正确。我想知道在单个查询中，甚至在存储过程中是否有更好的方法。

SELECT
  a.Barcode, 
  a.Desc, 
  SUM(b.amount) 'Basket SUM',
  COUNT(distinct b.TillslipID) 'Basket Count', 
  Sales.Count, 
  Sales.Amount 
FROM Store_Purchases b WITH (NOLOCK), 
Store_Purchases a WITH (NOLOCK), 
(
  SELECT
    top 500 Barcode,
    sum(qty) "Count", 
    SUM(amount) "Amount" 
  FROM Store_Purchases WITH (NOLOCK)
  WHERE (storecode = 30143)
  AND dtDatum BETWEEN '1-Feb-2013 00:00:00' AND '28-Feb-2013 23:59:59'
  GROUP BY Barcode
  ORDER BY SUM(amount) DESC
) AS Sales
WHERE (a.storecode = 30143)
AND a.dtDatum BETWEEN '1-Feb-2013 00:00:00' AND '28-Feb-2013 23:59:59'
AND a.Barcode = Sales.Barcode 
AND a.TillslipID = b.TillslipID 
AND a.storecode = b.storecode
AND b.dtDatum BETWEEN '1-Feb-2013 00:00:00' AND '28-Feb-2013 23:59:59'
GROUP BY a.Barcode, a.Desc, Sales.Count, Sales.Amount
ORDER BYSales.Count DESC

任何帮助将不胜感激。感谢。

Answer 1

select top 500 Barcode, [Desc], sum([Count]) as [Count], sum([Amount]) as Amount, sum(BasketSum) as [Basket Sum], count(TillslipID) as [Basket Count]
from (
    select Barcode, [Desc], TillslipID, [Count], [Amount], sum(Amount) over (partition by TillSlipID) as BasketSum
    from (
        select TillslipID, Barcode, [Desc], sum(qty) as [Count], sum(amount) as [Amount]
        FROM ez_Sparbuck_Products p
        WHERE (storecode = 30143) and dtDatum between '1-Feb-2013 00:00:00' and '28-Feb-2013 23:59:59'
        group by Barcode, [Desc], TillslipID, 
    ) t
) t
group by Barcode, [Desc]

这假设条形码没有两个[s]，考虑到你试图实现的结果，似乎就是这种情况。如果不是这种情况，则可以将此相同查询更改为使用partition by Barcode和distinct。

对于您正在执行此操作的数据量，我认为您需要dtDatum上的聚集索引，并且可能需要storecode上的某种分区。

产品表上的SQL多个连接/总和

1 个答案: