HAd*_*des 18 c# sql sql-server
我有一个用c#编写的应用程序,不能在公共假期或周末运行.我已经环顾四周,并没有找到任何地方(官方)为下一个50年提供所有公共假期.
如果我能得到这些,我只需将它们批量插入我的sql server Holidays表并使用它.但是,我无法在任何地方找到这些数据.
有谁知道Sql server是否支持公共假期或某种算法来解决它们？或者是否有人在某个地方可以批量插入.
小智 13
我只是通过互联网收集信息,我就可以通过这种简单的方式来计算美国银行假期.
DECLARE @Year char(4)
, @Date datetime
, @Holiday datetime
SET @Year = 2010
---- New Years Day
SET @Date=CONVERT( datetime, CONVERT(varchar, YEAR( @Year ) )+'-01-01' )
IF DATENAME( dw, @Date ) = 'Saturday'
SET @Date=@Date-1
ELSE IF DATENAME( dw, @Date ) = 'Sunday'
SET @Date=@Date+1
SELECT @Date [New Years Day], DATENAME( dw, @Date ) [DayOfWeek]
---- Martin L King's Birthday ( 3rd Monday in January )
SET @Date = CONVERT( datetime, CONVERT(varchar, YEAR( @Year ) )+'-01-01' )
SET @Holiday = DATEADD( wk, DATEDIFF( wk, 0, dateadd( dd, 18-datepart( day, @Date ), @Date ) ), 0 ) -- 3rd Monday of the Month
SELECT @Holiday [Martin L King's Birthday], DATENAME( dw, @Holiday ) [DayOfWeek]
---- President’s Day ( 3rd Monday in February )
SET @Date = CONVERT( datetime, CONVERT(varchar, YEAR( @Year ) )+'-02-01' )
SET @Holiday = DATEADD( wk, DATEDIFF( wk, 0, dateadd( dd, 18-datepart( day, @Date ), @Date ) ), 0 ) -- 3rd Monday of the Month
SELECT @Holiday [President’s Day], DATENAME( dw, @Holiday ) [DayOfWeek]
---- Memorial Day ( Last Monday in May )
SET @Date = CONVERT( datetime, CONVERT(varchar, YEAR( @Year ) )+'-05-01' )
SET @Holiday = DATEADD( wk, DATEDIFF( wk, 0, dateadd( dd, 30-datepart( day, @Date ), @Date ) ), 0 ) -- 5th Monday of the Month
SELECT @Holiday [Memorial Day], DATENAME( dw, @Holiday ) [DayOfWeek]
---- Independence Day ( July 4 )
SET @Date=CONVERT( datetime, CONVERT(varchar, YEAR( @Year ) )+'-07-04' )
IF DATENAME( dw, @Date ) = 'Saturday'
SET @Date=@Date-1
ELSE IF DATENAME( dw, @Date ) = 'Sunday'
SET @Date=@Date+1
SELECT @Date [Independence Day], DATENAME( dw, @Date ) [DayOfWeek]
---- Labor Day ( 1st Monday in September )
SET @Date = CONVERT( datetime, CONVERT(varchar, YEAR( @Year ) )+'-09-01' )
SET @Holiday = DATEADD( wk, DATEDIFF( wk, 0, dateadd( dd, 6-datepart( day, @Date ), @Date ) ), 0 ) -- 1st Monday of the Month
SELECT @Holiday [Labor Day], DATENAME( dw, @Holiday ) [DayOfWeek]
---- Columbus Day ( 2nd Monday in October )
SET @Date = CONVERT( datetime, CONVERT(varchar, YEAR( @Year ) )+'-10-01' )
SET @Holiday = DATEADD( wk, DATEDIFF( wk, 0, dateadd( dd, 12-datepart( day, @Date ), @Date ) ), 0 ) -- 2nd Monday of the Month
SELECT @Holiday [Columbus Day], DATENAME( dw, @Holiday ) [DayOfWeek]
---- Veteran’s Day ( November 11 )
SET @Date=CONVERT( datetime, CONVERT(varchar, YEAR( @Year ) )+'-11-11' )
IF DATENAME( dw, @Date ) = 'Saturday'
SET @Date=@Date-1
ELSE IF DATENAME( dw, @Date ) = 'Sunday'
SET @Date=@Date+1
SELECT @Date [Veteran’s Day], DATENAME( dw, @Date ) [DayOfWeek]
---- Thanksgiving Day ( 4th Thursday in November )
SET @Date = CONVERT( datetime, CONVERT(varchar, YEAR( @Year ) )+'-11-04' )
SET @Holiday = DATEADD( wk, DATEDIFF( wk, 0, dateadd( dd, 22-datepart( day, @Date ), @Date ) ), 0 )+3 -- 4th Thursday of the Month
SELECT @Holiday [Thanksgiving Day], DATENAME( dw, @Holiday ) [DayOfWeek]
---- Christmas Day ( December 25 )
SET @Date=CONVERT( datetime, CONVERT(varchar, YEAR( @Year ) )+'-12-25' )
IF DATENAME( dw, @Date ) = 'Saturday'
SET @Date=@Date-1
ELSE IF DATENAME( dw, @Date ) = 'Sunday'
SET @Date=@Date+1
SELECT @Date [Christmas Day], DATENAME( dw, @Date ) [DayOfWeek]
---- New Years Eve Day
SET @Date=CONVERT( datetime, CONVERT(varchar, YEAR( @Year ) )+'-12-31' )
IF DATENAME( dw, @Date ) = 'Saturday'
SET @Date=@Date-1
ELSE IF DATENAME( dw, @Date ) = 'Sunday'
SET @Date=@Date+1
SELECT @Date [New Years Day], DATENAME( dw, @Date ) [DayOfWeek]
据我所知,没有任何"官方"来源,这确实高度依赖于语言环境.您必须手动管理这些.好消息来源似乎是:
http://en.wikipedia.org/wiki/List_of_holidays_by_country
即使在这些情况下,管理起来也非常棘手.例如,我住在比利时,这个国家的不同地区有不同的假期.例如,政府工作人员与其他劳动力相比有不同的假期,这是相同的区域代码.
在我们的应用程序中,我们将其作为用户配置的一部分 用户可以根据自己的需要设置他们认为的公共/银行假期.为了便于使用,可以按照前几年的日期复制它们.这也允许他们设置"定制"公共保留,也许是公司视为假期但不是国家官方的一天......
然而,以编程方式,绝对没有任何假设.它实际上只是用户维护的日期表.
(这包括英国,因为如上所述,有些假期有所不同,并且不是一成不变的,有时会有特殊的一天假.)