DROP FUNCTION [dbo].[fn_IsLeapYear]
GO
/****** Object: UserDefinedFunction [dbo].[fn_IsLeapYear] Script Date: 2016/2/25 13:22:50 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
/*
select dbo.[fn_IsLeapYear] (year(getdate()))
select dbo.[fn_IsLeapYear] (2008)
select dbo.[fn_IsLeapYear] (2001)
*/
create function [dbo].[fn_IsLeapYear]
(
@year int
)
returns varchar(14)
as begin
declare @returnvalue int
----varchar(14)
declare @setvalue int
set @setvalue=datepart(mm,dateadd(dd,1,cast((cast(@year as varchar(4))+ '0228') as datetime)))
if(@setvalue=2)
set @returnvalue=1
---@returnvalue='闰年'
else
set @returnvalue=0
---@returnvalue='非闰年'
----return (cast (@year as varchar(8))+'年:'+@returnvalue)
return @returnvalue
end
GO
V2：
/****** Object: UserDefinedFunction [dbo].[fn_IsLeapYear] Script Date: 2016/2/25 13:22:50 ******/
DROP FUNCTION [dbo].[fn_IsLeapYearV2]
GO
/****** Object: UserDefinedFunction [dbo].[fn_IsLeapYear] Script Date: 2016/2/25 13:22:50 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
/*
select dbo.[fn_IsLeapYearV2] (year(getdate()))
select dbo.[fn_IsLeapYearV2] (2008)
select dbo.[fn_IsLeapYearV2] (2001)
*/
create function [dbo].[fn_IsLeapYearV2]
(
@year int
)
returns varchar(14)
as begin
declare @returnvalue int
set @returnvalue=CASE WHEN (@year % 4 = 0 AND @year % 100 <> 0)
or (@year % 400 = 0) THEN 1 ELSE 0 END
return @returnvalue
end
GO
