SQL子查詢通過記錄

Question

這是一個簡單的查詢：

SELECT  fDATE, fRAIN 
FROM   tRAIN 
WHERE  (fRAIN >=5) 

檢索查詢可能是這樣的：

Query Result

現在，我想對應的時間越長，子集雨季，在這種情況下，日期爲10月9日至13日。有沒有辦法做到這一點，而不通過記錄集循環？

我感謝您的幫助。問候

Answer 1

我已經完成了任務，通過回答張貼在How to get count of consecutive dates

WITH Q4 AS (
SELECT Q3.fDate, Q3.RW 
FROM 
(SELECT 
RW=ROW_NUMBER() OVER(PARTITION BY GRP ORDER BY fDate) ,fDate 
FROM 
(
SELECT 
fDate, DATEDIFF(Day, '1900-01-01' , fDate)- ROW_NUMBER() OVER(ORDER BY 
fDate) AS GRP 
FROM (SELECT CONVERT(DATE,CONCAT(fYEAR , '/' , fMONTH , '/' ,fDAY),111) AS fDate, 
fRAIN 
FROM tRain 
WHERE (fRain >= _value AND fStation = '_string' AND fYear = _value) 
) Q1 
) Q2 
) Q3 
) 
SELECT (DATEADD(DAY,-Q4.RW+1,Q4.fDate)) AS Start_Date, Q4.fDate AS 
Final_Date, Q4.RW as Season_Length 
FROM Q4 
WHERE Q4.RW= (SELECT TOP 1 MAX(Q4.RW) FROM Q4) 

引導輸出看起來像：

QUERY RESULT

問候賽季