if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[f_WorkDay]') and xtype in (N'FN', N'IF', N'TF'))
drop function [dbo].[f_WorkDay]
GO
--计算两个日期相差的工作天数
CREATE FUNCTION f_WorkDay(
@dt_begin datetime, --计算的开始日期
@dt_end datetime --计算的结束日期
)RETURNS int
AS
BEGIN
declare @i int
select @i=abs(datediff(dd,@dt_begin,@dt_end))
declare @t table(dt datetime)
if @dt_begin>@dt_end
insert @t select dateadd(dd,number,@dt_end) from master..spt_values
where number