Question

我有下表（SQL Server 2012）：

DID - cust id
GID - order id
AMT - order amt
Gf_Date - order date
SC - order reversal amount

我正在尝试计算订单的运行次数和客户的销售总额，以便我可以为客户达到累计销售额1,000美元的时间点分配一个标记。作为第一步，我运行了这个查询：

Select
  [DID]
, [AMT]
, [Gf_Date]
, COUNT([GID]) OVER (PARTITION BY [DID] ORDER BY [Gf_Date]) [RunningGift_Count]
, SUM([AMT]) OVER (PARTITION BY [DID] ORDER BY [Gf_Date]) [CumlativeTotal]
FROM [dbo].[MCT]
WHERE [SC] is null
ORDER BY [DID]

但我收到错误消息：

Msg 102，Level 15，State 1，Line 3'order'附近的语法不正确

我之前发布的是粘贴错误的错误消息。遗憾和道歉。你上面看到的是我得到的结果。有人评论说这种语法不正确。现在一切都井然有序，有人能告诉我我做错了吗？

任何人都可以帮助我吗？找不到任何解决方案！谢谢！

Answer 1

您应该使用ROW_NUMBER（link）代替COUNT：

DECLARE @Threshold NUMERIC(19,2)=1000; -- Use the same data type as `[AMT]`'s data type

Select
  [DID]
, [AMT]
, [Gf_Date]
--, COUNT([GID]) OVER (PARTITION BY [DID] ORDER BY [Gf_Date]) [RunningGift_Count]
, ROW_NUMBER() OVER (PARTITION BY [DID] ORDER BY [Gf_Date]) [RunningGift_Count]
, SUM([AMT]) OVER (PARTITION BY [DID] ORDER BY [Gf_Date]) [CumlativeTotal]
, CASE
      WHEN SUM([AMT]) OVER (PARTITION BY [DID] ORDER BY [Gf_Date]) >= @Threshold THEN 1
      ELSE 0
  END IsThresholdPassed
FROM [dbo].[MCT]
WHERE [SC] is null
ORDER BY [DID]

计算运行计数＆amp;使用SQL在客户中运行总计

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