SQL子查询通过记录

Question

这是一个简单的查询：

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

检索查询可能是这样的：

Query Result

现在，我想对应的时间越长，子集雨季，在这种情况下，日期为10月9日至13日。有没有办法做到这一点，而不通过记录集循环？

我感谢您的帮助。问候

Answer 1

我已经完成了任务，通过回答张贴在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) 

引导输出看起来像：

QUERY RESULT

问候赛季