SQL 2012返回次數和兩次之間的總和

Question

我之前詢問過這個查詢，並且我取得了一些進展。現在我需要一個更受限制的數據集，但是我的代碼存在問題。下面是我使用的是什麼：

DECLARE @mindate DATETIME = '2011-12-30' 
DECLARE @maxdate DATETIME = '2011-12-31' 

;WITH cte 
AS (SELECT 
     CONVERT(DATETIME,@mindate) AS [StartDate], 
     DATEADD(MI, 10,CONVERT(DATETIME,@mindate)) AS [EndDate] 
    UNION ALL 
    SELECT 
     DATEADD(MI, 10, [StartDate]), 
     DATEADD(MI, 10, [EndDate]) 
    FROM cte 
    WHERE [StartDate] < CONVERT(DATETIME,@maxdate)) 

SELECT 
    [StartDate], 
    [EndDate], 
    COUNT(cr.MESSAGE_SIZE) AS [TransactionItemsMigrated], 
    SUM(cr.MESSAGE_SIZE) AS [TransactionSizeBytes], 
    (SELECT COUNT(*) FROM MESSAGE WHERE MESSAGE_STATUS = 2) [CurrentItemsFailed] 
FROM cte 
LEFT JOIN CROSS_REFERENCE cr 
    ON cr.MIGRATION_DATE_TIME BETWEEN [StartDate] AND [EndDate] 
GROUP BY cte.StartDate, cte.EndDate 
OPTION (MAXRECURSION 0) 

我需要顯示一排，每10分鐘，即使TransactionItemsMigrated和/或TransactionSizeBytes爲0或NULL。我得到的結果不會每10分鐘顯示一次。 StartDate和EndDate之間的時間跨度顯示正確，並且似乎正確計數了項目和大小，但StartDate正在跳躍超過10分鐘。下面的每個條目都是一行。

StartDate 2016-02-01 00:40:00.000 
EndDate 2016-02-01 00:50:00.000 
TransactionItemsMigrated 1925 
TransactionSizeBytes 1843712 
CurrentItemsFailed 6538601 

StartDate 2016-02-01 01:50:00.000 
EndDate 2016-02-01 02:00:00.000 
TransactionItemsMigrated 1892 
TransactionSizeBytes 51712 
CurrentItemsFailed 6538601 

我無法粘貼結果，因爲它在沒有複製/粘貼訪問權限的虛擬機上運行。有什麼建議麼？

Answer 1

我可以建議你忘記使用遞歸來實現你的目標，因爲這不會執行，你已經看起來有問題嗎？我想用tally table去做。

這是您的腳本使用理貨表的翻譯。這將表現得更好，同時，它可能會或可能不會解決你的問題，但如果它仍然存在，你一定會對這個問題有更多的瞭解。

;WITH 
t1  AS (SELECT N = 1 UNION ALL SELECT 1 N), 
t2  AS (SELECT N = 1 FROM t1 x, t1 y), 
t3  AS (SELECT N = 1 FROM t2 x, t2 y), 
t4  AS (SELECT N = 1 FROM t3 x, t3 y), 
t5  AS (SELECT N = 1 FROM t4 x, t4 y), 
Tally AS (SELECT N = ROW_NUMBER() OVER (ORDER BY (SELECT NULL)) 
      FROM t5 AS x, t5 as y)--building a tally with recursive but an less expensive one then the one you had. 

SET DATEFORMAT YMD 
DECLARE @mindate DATETIME = '2011-12-30' 
DECLARE @maxdate DATETIME = '2011-12-31' 
DECLARE @NMax INT 
SELECT @NMax = ISNULL(DATEDIFF(MINUTE, @mindate, @maxdate)/10, 0) --Count the number of 10 minutes slice between the two dates. 

SELECT [StartDate]     = DATEADD(MINUTE, (Tally.N - 1) * 10, @mindate), 
     [EndDate]     = DATEADD(MINUTE, (Tally.N) * 10, @mindate), 
     [TransactionItemsMigrated] = COUNT(cr.MESSAGE_SIZE), 
     [TransactionSizeBytes]  = SUM(cr.MESSAGE_SIZE), 
     [CurrentItemsFailed]  = (SELECT COUNT(*) FROM MESSAGE WHERE MESSAGE_STATUS = 2) 
FROM Tally 
LEFT JOIN CROSS_REFERENCE AS cr ON DATEADD(MINUTE, (Tally.N - 1) * 10, @mindate) >= cr.MIGRATION_DATE_TIME 
           AND DATEADD(MINUTE, (Tally.N) * 10, @mindate) < cr.MIGRATION_DATE_TIME 
WHERE Tally.N <= @NMax 
ORDER BY Tally.N