104 lines
2.9 KiB
Transact-SQL
104 lines
2.9 KiB
Transact-SQL
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/*
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--select [dbo].[fnc_CRT_RoundDate] (GetDate(),@Year,@Month,@Week,@Day,@Hour,@Minute)
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select [dbo].[fnc_CRT_RoundDate] (GetDate(),NULL ,Null, 2 ,Null ,Null, Null)
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*/
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CREATE function [dbo].[fnc_CRT_RoundDate](@Date datetime,
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@Year int,
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@Month int,
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@Week int,
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@Day int,
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@Hour int,
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@Minute int) returns datetime
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as
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begin
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declare @RoundedDate datetime
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set @RoundedDate = dateadd(millisecond, -datepart(millisecond, @Date) -datepart(second, @Date)*1000, @Date)
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if @Minute is not null
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Begin
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if @Minute > 0
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set @RoundedDate = dateadd(minute, datepart(minute, @RoundedDate) / @Minute * @Minute - datepart(minute, @RoundedDate), @RoundedDate)
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End
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Else Begin
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set @Minute = 60
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set @RoundedDate = dateadd(minute, datepart(minute, @RoundedDate) / @Minute * @Minute - datepart(minute, @RoundedDate), @RoundedDate)
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End
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--select @Minute, @Date, @RoundedDate
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if @Hour is not null
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Begin
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set @RoundedDate = dateadd(hour, datepart(hour, @RoundedDate) / @Hour * @Hour - datepart(hour, @RoundedDate), @RoundedDate)
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End
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--select @Hour, @Date, @RoundedDate
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if @Day is not null
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Begin
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If @Day > 1
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set @RoundedDate = @RoundedDate - @Day +1
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set @RoundedDate = Cast(Convert(char(10),DateAdd(MINUTE,-DatePart(MINUTE,@RoundedDate), @RoundedDate),121) as datetime )
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--set @RoundedDate = dateadd(day, datepart(day, @RoundedDate) / @Day * @Day - datepart(day, @RoundedDate), @RoundedDate)
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IF DatePart(Year,@RoundedDate) < DatePart(Year,@Date)
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Set @RoundedDate = Cast( Cast(DatePart(Year,@Date) as varchar(4))+ '-01-01 00:00:00.000' as datetime)
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End
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--select @Day, @Date, @RoundedDate
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if @Week Is Not Null
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Begin
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select @RoundedDate = cast(floor(cast(@RoundedDate as float)) as datetime)
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IF datepart(weekday, @RoundedDate) > 1
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set @RoundedDate = dateadd(day, -datepart(weekday, @RoundedDate)+1 , @RoundedDate)
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IF @Week > 1
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set @RoundedDate = dateadd(day, -7*(@Week-1) , @RoundedDate)
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IF DatePart(Year,@RoundedDate) < DatePart(Year,@Date)
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Set @RoundedDate = Cast( Cast(DatePart(Year,@Date) as varchar(4))+ '-01-01 00:00:00.000' as datetime)
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IF DatePart(dw,@RoundedDate) <> 1
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Set @RoundedDate = DateAdd(day,-DatePart(dw,@RoundedDate)+1,@RoundedDate )
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End
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if @Month Is Not Null
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Begin
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Select @RoundedDate = Cast(Convert(char(7),@RoundedDate, 121 ) + '-01 00:00:00.000' as datetime)
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Set @RoundedDate = DateAdd(Month,-(@Month-1),@RoundedDate)
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IF DatePart(Year,@RoundedDate) < DatePart(Year,@Date)
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Set @RoundedDate = Cast( Cast(DatePart(Year,@Date) as varchar(4))+ '-01-01 00:00:00.000' as datetime)
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End
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if @Year Is Not Null
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Begin
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Set @RoundedDate = Cast( Cast(DatePart(Year,@Date) as varchar(4))+ '-01-01 00:00:00.000' as datetime)
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Set @RoundedDate = DateAdd(Year,-(@Year-1),@RoundedDate)
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End
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return @RoundedDate
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end |