if exists(select 1 from sysobjects where type=‘TF‘ and name=‘ATPublic_TF_GetSummaryDate‘) drop function ATPublic_TF_GetSummaryDate go create function ATPublic_TF_GetSummaryDate ( @calltype varchar(1)=‘‘, --0:年 1:月 1:日 @startdate DATE, --开始日期 @enddate DATE --结束日期 ) /*** Author: Create date: 2018-01-18 Description: 循环返回日期 Example: ***/ RETURNS @retDateValue TABLE (datevalue varchar(32)) as begin if @calltype=‘0‘ begin insert into @retDateValue(datevalue) select substring(convert(varchar(32),DATEADD(YEAR,number,@startdate),21),1,4) as yearvalue from master..spt_values WHERE TYPE = ‘P‘ AND DATEADD(YEAR,number,@startdate) <= @enddate end else if @calltype=‘1‘ begin insert into @retDateValue(datevalue) select substring(convert(varchar(32),DATEADD(MONTH,number,@startdate),21),1,7) as yearvalue from master..spt_values WHERE TYPE = ‘P‘ AND DATEADD(MONTH,number,@startdate) < @enddate end else if @calltype=‘2‘ begin insert into @retDateValue(datevalue) select convert(varchar(32),DATEADD(DAY,number,@startdate),21)+‘ 00:00:00‘ as yearvalue from master..spt_values WHERE TYPE = ‘P‘ AND DATEADD(DAY,number,@startdate) < @enddate end return end go
调用示例:
declare @beginDate varchar(32)=‘‘, @endDate varchar(32)=‘‘,@datebefore datetime select @beginDate=‘2017-01-01‘,@endDate=‘2017-05-31‘ select @datebefore=CONVERT(datetime,@beginDate) select datevalue from ATPublic_TF_GetSummaryDate(‘0‘,@beginDate,@endDate) select datevalue from ATPublic_TF_GetSummaryDate(‘1‘,@beginDate,dateadd(YEAR,1,@datebefore)) select datevalue from ATPublic_TF_GetSummaryDate(‘1‘,@beginDate,dateadd(MONTH,1,@datebefore)) select datevalue from ATPublic_TF_GetSummaryDate(‘2‘,@beginDate,dateadd(MONTH,1,@datebefore))