SQL Server 获取两个时间之间的月份、日期

1.获取两个时间之间的月份

1.1.编写表值函数

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER FUNCTION [dbo].[f_GetMonthRange] 
(
	@startTime datetime, 
	@endTime datetime
)
RETURNS @table TABLE  --输出的数据表
 (
    [DateMonth] varchar(7)
 )
AS
BEGIN
	WHILE @startTime <= @endTime
	BEGIN
        INSERT INTO @table
            SELECT  CONVERT(varchar(7),DATEADD(mm, DATEDIFF(mm, 0, @startTime), 0) , 120) AS DateMonth
                      
        SET @startTime = CONVERT(varchar(7), DATEADD(mm, 1, @startTime) , 120) + '-01'
	END
	RETURN;
END

1.2.测试效果

select * from F_GetMonthRange('2022-01-01 00:00:00','2022-09-01 00:00:00')

2.获取两个时间之间的日期

2.1.编写表值函数

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER function [dbo].[f_GetDateRange](@startTime datetime, @endTime datetime)
RETURNS TABLE
AS
RETURN
(
SELECT convert(char(10), DATEADD(dd, number, @startTime),120) AS DateDay
FROM    master.dbo.spt_values  as spt
WHERE   type = 'p' AND number <= DATEDIFF(DAY, @startTime, @endTime)
)

2.2.测试效果

select * from F_GetDateRange('2022-01-01 00:00:00','2022-09-01 00:00:00')