MSSQL 日期操作函数 总结

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go
ALTER FUNCTION [dbo].[ufn_getDateOfWeek]
(@Date Datetime)
RETURNS nchar(1)
AS
BEGIN
 DECLARE @returnValue nchar(1);

    SET @returnvalue = case datepart(dw,@Date) when 2 then '一'
                                               when 3 then '二'
                                               when 4 then '三'
                                               when 5 then '四'
                                               when 6 then '五'
                                               when 7 then '六'
                                               when 1 then '日'
                       end;
 RETURN @returnValue
END

---------------------
set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go

ALTER FUNCTION [dbo].[ufn_TransDate]
(
 @Date DATETIME
)
RETURNS nvarchar(50)
AS
/*
Action:  讲时间传换成这样的格式 01-18 14:00
CreatedBy:
CreatedDate: 2011-01-19 11:44:12.920
ModifiedHistory:
Test Scripts:
print dbo.ufn_TransDate('2011-01-19 11:44:12.920')
*/
BEGIN
 DECLARE @Str NVARCHAR(50)

 SET @Str = Convert(Nvarchar(19),Convert(DateTime,@Date,120),120)

 SET @Str = SUBSTRING(@Str,6,11)

 RETURN @Str
END

---------------------------------------
set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go

ALTER FUNCTION [dbo].[ufn_TransDate2]
(
 @Date DATETIME
)
RETURNS nvarchar(50)
AS
/*
Action:  讲时间传换成这样的格式 2011-01-18
CreatedBy:
CreatedDate: 2011-01-19 11:44:12.920
ModifiedHistory:
Test Scripts:
print dbo.ufn_TransDate2('2011-01-19 11:44:12.920')
*/
BEGIN
 DECLARE @Str NVARCHAR(50)

 SET @Str = Convert(Nvarchar(19),Convert(DateTime,@Date,120),120)

 SET @Str = SUBSTRING(@Str,1,11)

 RETURN @Str
END

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