SQL Server以月为单位拆分日期范围
我想将日期范围分为几个月。我将通过startdate1-jan-2011和enddate31-dec-2011作为参数,然后它必须返回如下结果SQL Server以月为单位拆分日期范围,sql,sql-server,Sql,Sql Server,我想将日期范围分为几个月。我将通过startdate1-jan-2011和enddate31-dec-2011作为参数,然后它必须返回如下结果 1-jan-2011 - 31-jan-2011 1-feb-2011 - 28-feb-2011 1-mar-2011 - 31-mar-2011 请给我发一个存储过程 谢谢, 阿披实试试这个: CREATE PROC SplitDateRange @from DATETIME, @to DATETIME AS BEGIN S
1-jan-2011 - 31-jan-2011
1-feb-2011 - 28-feb-2011
1-mar-2011 - 31-mar-2011
请给我发一个存储过程 谢谢, 阿披实试试这个:
CREATE PROC SplitDateRange
@from DATETIME,
@to DATETIME
AS
BEGIN
SET NOCOUNT ON;
SET @from = CONVERT(VARCHAR, DATEADD(DAY, -DATEPART(DAY, @from)+1, @from), 112)
-- Sql 2000
CREATE TABLE #temp (DateFrom DATETIME, DateTo DATETIME)
WHILE @from < @to
BEGIN
INSERT #temp VALUES (@from, DATEADD(DAY, -1, DATEADD(MONTH, 1, @from)))
SET @from = DATEADD(MONTH, 1, @from)
END
SELECT * FROM #temp
DROP TABLE #temp
--sql 2005+
/*
;WITH Ranges(DateFrom, DateTo) AS
(
SELECT @from DateFrom, DATEADD(DAY, -1, DATEADD(MONTH, 1, @from)) DateTo
UNION ALL
SELECT DATEADD(MONTH, 1, DateFrom), DATEADD(DAY, -1, DATEADD(MONTH, 1, DATEADD(MONTH, 1, DateFrom)))
FROM Ranges
WHERE DateFrom < DATEADD(MONTH, -1, @To)
)
SELECT * FROM Ranges
OPTION(MAXRECURSION 0)
*/
END
GO
EXEC SplitDateRange '2011-01-02', '2012-06-06'
试试这个:
CREATE PROC SplitDateRange
@from DATETIME,
@to DATETIME
AS
BEGIN
SET NOCOUNT ON;
SET @from = CONVERT(VARCHAR, DATEADD(DAY, -DATEPART(DAY, @from)+1, @from), 112)
-- Sql 2000
CREATE TABLE #temp (DateFrom DATETIME, DateTo DATETIME)
WHILE @from < @to
BEGIN
INSERT #temp VALUES (@from, DATEADD(DAY, -1, DATEADD(MONTH, 1, @from)))
SET @from = DATEADD(MONTH, 1, @from)
END
SELECT * FROM #temp
DROP TABLE #temp
--sql 2005+
/*
;WITH Ranges(DateFrom, DateTo) AS
(
SELECT @from DateFrom, DATEADD(DAY, -1, DATEADD(MONTH, 1, @from)) DateTo
UNION ALL
SELECT DATEADD(MONTH, 1, DateFrom), DATEADD(DAY, -1, DATEADD(MONTH, 1, DATEADD(MONTH, 1, DateFrom)))
FROM Ranges
WHERE DateFrom < DATEADD(MONTH, -1, @To)
)
SELECT * FROM Ranges
OPTION(MAXRECURSION 0)
*/
END
GO
EXEC SplitDateRange '2011-01-02', '2012-06-06'
因此,您可以在另一个SQL查询中使用结果,我假设这是您要去的地方,我将把它放入一个表值函数中 假设SQL Server 2005+您可以使用此
CREATE FUNCTION dbo.ufnMonthlyIntervals(
@from_date SMALLDATETIME,
@end_date SMALLDATETIME
)
RETURNS TABLE
WITH
intervals (
from_date,
end_date
)
AS
(
SELECT @from_date, DATEADD(MONTH, 1, @from_date ) - 1
UNION ALL
SELECT end_date + 1, DATEADD(MONTH, 1, end_date + 1) - 1 FROM intervals WHERE end_date < @end_date
)
RETURN
SELECT
from_date,
CASE WHEN end_date > @end_date THEN @end_date ELSE end_date END AS end_date
FROM
intervals
然后您只需使用SELECT*FROM dbo.UFNMonthlyInterval'20110101',20111201'作为间隔,这样您就可以在另一个SQL查询中使用结果,我假设这就是您要去的地方,我会将其放入表值函数中 假设SQL Server 2005+您可以使用此
CREATE FUNCTION dbo.ufnMonthlyIntervals(
@from_date SMALLDATETIME,
@end_date SMALLDATETIME
)
RETURNS TABLE
WITH
intervals (
from_date,
end_date
)
AS
(
SELECT @from_date, DATEADD(MONTH, 1, @from_date ) - 1
UNION ALL
SELECT end_date + 1, DATEADD(MONTH, 1, end_date + 1) - 1 FROM intervals WHERE end_date < @end_date
)
RETURN
SELECT
from_date,
CASE WHEN end_date > @end_date THEN @end_date ELSE end_date END AS end_date
FROM
intervals
然后您只需使用SELECT*FROM dbo.ufnmonthlyInterval'20110101',20111201'作为间隔请给我发送一个存储过程-您尝试了什么?请给我发送一个存储过程-您尝试了什么?@AndriyM-请参阅中的第二个示例作为我的语法参考。是,我明白,如果一个人不密切注意,这会产生误导RETURNS TABLE和[AS]RETURN之间的WITH子句与CTE定义无关。@AndriyM-请参阅AS参考中的第二个示例以了解我的语法。是的,我知道如果不密切注意,它可能会产生误导:RETURNS TABLE和[AS]RETURN之间的WITH子句与CTE定义无关。