Get First/Last Date of Month

October 12, 2009

>>Script Language and Platform: TSQL/SQL Server 2000
This script returns the first/last date of the month after receiving any date of the month.

Author: Anjum Niaz

SET QUOTED_IDENTIFIER ON 
GO
SET ANSI_NULLS ON 
GO

CREATE FUNCTION [GetFirstDateofMonth] 
(@Date as DateTime)  

RETURNS DateTime AS  
BEGIN 

Declare @FirstDate DateTime 
Set @FirstDate = DateAdd(Day, 1, @Date - Day(@Date) + 1) -1

RETURN @FirstDate

END

GO

CREATE  FUNCTION [GetLastDateofMonth] 
(@Date as DateTime)  

RETURNS DateTime AS  
BEGIN 

Declare @LastDate DateTime 
Set @LastDate = DateAdd(Month, 1, @Date - Day(@Date) + 1) -1

RETURN @LastDate

END
GO 

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