如何使用PIVOT

Question

SELECT * FROM (
    SELECT YEAR(CreateDate) [Year], MONTH(CreateDate) [Month], DATENAME(MONTH,CreateDate) [Month Name],COUNT(id) [Total], 
    CASE 
      WHEN PaymentStatus = 1 THEN 'Pending' 
      WHEN PaymentStatus = 2 THEN 'Commited' 
      WHEN PaymentStatus = 3 THEN 'Confirmed' 
      WHEN PaymentStatus = 4 THEN 'Canceled' 
      WHEN PaymentStatus = 5 THEN 'Failed' 
      ELSE '' 
     END AS PaymentStatus,count(ID) as counts 
    FROM [dbo].[BankPaymentRequest] 
    GROUP BY YEAR(CreateDate), MONTH(CreateDate), DATENAME(MONTH, CreateDate), PaymentStatus) as asd 
    PIVOT(SUM(counts) 
    FOR PaymentStatus IN ([Pending],[Commited],[Confirmed],[Canceled],[Failed])) AS MNamePivot 

從SQL得到月明智的數據我想從這個查詢與各自[待定]年月明智的數據，[COMMITED]，[確定]，[取消]，[失敗]事務計數。基本上我想要明確月交易計數待定，已委託，確認，取消和失敗。

我正在使用Sql Server 2016 現在我得到確切的數據，但幾個月列出兩次或三次。

我要像下面的格式

Year Month Total Pending Commited Confirmed Canceled Failed 
2016 Jan 34  1  4   63   840  157 
2016 Feb 34  8  4   62   8  15 
2016 Mar 65  1  4   63   840  157 
2016 Dec 56  8  4   62   8  15 
2017 Jan 78  1  4   63   840  157 
2017 Feb 89  8  4   62   8  15 
2017 Mar 67  1  4   63   840  157 
2017 Dec 8  4  62   8   15  345 

請幫我這樣的查詢或任何其他查詢數據。

Answer 1

您可以嘗試將現有查詢放入Common Table Expression，然後在年份和月份中加入GROUP BY，同時對數字進行求和。

WITH preselect AS 
(
SELECT * FROM (
    SELECT YEAR(CreateDate) [Year], MONTH(CreateDate) [Month], DATENAME(MONTH,CreateDate) [Month Name],COUNT(id) [Total], 
    CASE 
      WHEN PaymentStatus = 1 THEN 'Pending' 
      WHEN PaymentStatus = 2 THEN 'Commited' 
      WHEN PaymentStatus = 3 THEN 'Confirmed' 
      WHEN PaymentStatus = 4 THEN 'Canceled' 
      WHEN PaymentStatus = 5 THEN 'Failed' 
      ELSE '' 
     END AS PaymentStatus,count(ID) as counts 
    FROM [dbo].[BankPaymentRequest] 
    GROUP BY YEAR(CreateDate), MONTH(CreateDate), DATENAME(MONTH, CreateDate), PaymentStatus) as asd 
    PIVOT(SUM(counts) 
    FOR PaymentStatus IN ([Pending],[Commited],[Confirmed],[Canceled],[Failed])) AS MNamePivot 
) 

SELECT [YEAR],[MONTH],SUM(TOTAL)'TOTAL',SUM(Pending)'Pending' 
        ,SUM(Commited)'Commited',SUM(Confirmed)'Confirmed' 
        ,SUM(Canceled)'Canceled',SUM(Failed)'Failed' 
FROM preselect 
GROUP BY [YEAR],[MONTH]