我有一個查詢從1分鐘到任何其他時間框架聚合(壓縮)數據,它完美的作品。修改查詢sql
Use StockDataFromSella;
DECLARE @D1 DateTime
DECLARE @D2 DateTime
DECLARE @Interval FLOAT
SET @D1 = '2008-09-21T09:00:00.000'
SET @D2 = '2010-10-20T17:30:00.000'
SET @Interval = 15
;WITH
L0 AS (SELECT 1 AS c UNION ALL SELECT 1),
L1 AS (SELECT 1 AS c FROM L0 A CROSS JOIN L0 B),
L2 AS (SELECT 1 AS c FROM L1 A CROSS JOIN L1 B),
L3 AS (SELECT 1 AS c FROM L2 A CROSS JOIN L2 B),
L4 AS (SELECT 1 AS c FROM L3 A CROSS JOIN L3 B),
Nums AS (SELECT ROW_NUMBER() OVER (ORDER BY (SELECT 0)) AS i FROM L4),
Ranges AS(
SELECT
DATEADD(MINUTE,@Interval*(i-1),@D1) AS StartRange,
DATEADD(MINUTE,@Interval*i,@D1) AS NextRange
FROM Nums where i <= 1+CEILING(DATEDIFF(MINUTE,@D1,@D2)/@Interval))
,cte AS (
SELECT
*
,ROW_NUMBER() OVER (PARTITION BY Simbolo,r.StartRange ORDER BY [DataOra]) AS RN_ASC
,ROW_NUMBER() OVER (PARTITION BY Simbolo,r.StartRange ORDER BY [DataOra] DESC) AS RN_DESC
FROM Ranges r
JOIN dbo.tbl1MinENI p ON p.[DataOra] >= r.StartRange and p.[DataOra] < r.NextRange)
SELECT
Simbolo,
MAX(CASE WHEN RN_ASC=1 THEN [DataOra] END) AS DataOra,
MAX(CASE WHEN RN_ASC=1 THEN [Apertura] END) AS [Apertura],
MAX(Massimo) Massimo,
MIN(Minimo) Minimo,
MAX(CASE WHEN RN_DESC=1 THEN [Chiusura] END) AS [Chiusura],
SUM(Volume) Volume
/*MAX(CASE WHEN RN_DESC=1 THEN [DataOra] END) AS ChiusuraDataOra*/
FROM cte
GROUP BY Simbolo,StartRange
ORDER BY DataOra
我想第二列DataOra(日期時間)分割成兩個diferent列,一個用於日期(如果不可能性在DD/MM/yyyy格式)和第二對只有時間。 任何幫助非常感謝,謝謝。 Alberto
您使用的是哪個**版本**(2005,2008,2008 R2)? – 2011-06-06 20:59:34
Microsoft SQL Server Management Studio Express(SQL Server 2005) – 2011-06-06 21:01:50