---sql server declare @date datetimeset @date='2012-02-03'--getdate()--本月第一天SELECT DATEADD(mm, DATEDIFF(mm,0,@date), 0)--本月最后一天SELECT dateadd(ms,-3,DATEADD(mm, DATEDIFF(m,0,@date)+1, 0))---有個月多少天函數if exists (select * fro
---sql server
declare @date datetime
set @date='2012-02-03'--getdate()
--本月第一天
SELECT DATEADD(mm, DATEDIFF(mm,0,@date), 0)
--本月最后一天
SELECT dateadd(ms,-3,DATEADD(mm, DATEDIFF(m,0,@date)+1, 0))
---有個月多少天函數
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[GetAMonthHowNumber]') and xtype in (N'FN', N'IF', N'TF'))
drop function [dbo].[GetAMonthHowNumber]
GO
CREATE function GetAMonthHowNumber
(
@date datetime
)
returns int
as
begin
declare @int int
select @int=datediff(dd , @date , dateadd(mm, 1, @date))
return @int
end
GO
--
select [dbo].[GetAMonthHowNumber] (getdate()) AS '月天數'
---計算當月周六，周日有多少天
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[GetAMonthStatSunNumber]') and xtype in (N'FN', N'IF', N'TF'))
drop function [dbo].[GetAMonthStatSunNumber]
GO
CREATE function GetAMonthStatSunNumber
(
@date datetime
)
returns int
as
begin
declare @Sdate datetime ,@Edate datetime
SELECT @Sdate=DATEADD(mm, DATEDIFF(mm,0,@date), 0)
SELECT @Edate=dateadd(ms,-3,DATEADD(mm, DATEDIFF(m,0,@date)+1, 0))
--set @Sdate='2013-05-01'
--set @Edate='2013-05-31'
declare @aa table (strdate datetime)
declare @i int
set @i=datediff(day,@Sdate,@Edate)
while(@i>=0)
begin
insert @aa values (dateadd(day,@i,@Sdate))
set @i=@i-1
end
select @i= count(*) from @aa where datepart(weekday,strdate) in (1,7) --not in (1,7)
return @i
end
go
--
select [dbo].[GetAMonthStatSunNumber] (getdate()) AS '雙休日天數'
--計算當月除周六，香港服务器租用，周日有多少天，虚拟主机，也是有多少工作日
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[GetAMonthWorkDayNumber]') and xtype in (N'FN', N'IF', N'TF'))
drop function [dbo].[GetAMonthWorkDayNumber]
GO
CREATE function GetAMonthWorkDayNumber
(
@date datetime
)
returns int
as
begin
declare @Sdate datetime ,@Edate datetime
SELECT @Sdate=DATEADD(mm, DATEDIFF(mm,0,@date), 0)
SELECT @Edate=dateadd(ms,-3,DATEADD(mm, DATEDIFF(m,0,@date)+1, 0))
--set @Sdate='2013-05-01'
--set @Edate='2013-05-31'
declare @aa table (strdate datetime)
declare @i int
set @i=datediff(day,@Sdate,@Edate)
while(@i>=0)
begin
insert @aa values (dateadd(day,@i,@Sdate))
set @i=@i-1
end
select @i= count(*) from @aa where datepart(weekday,strdate) not in (1,7) --not in (1,7)
return @i
end
go
---
select [dbo].[GetAMonthWorkDayNumber] (getdate()) as '工作日天數'
，虚拟主机
