Showing posts with label calculate age. Show all posts
Showing posts with label calculate age. Show all posts

Monday, March 4, 2013

calculate age or get the duration between two dates in years, months and days


ALTER FUNCTION [dbo].[calc_age]
(
-- Add the parameters for the function here
@date smalldatetime
)
RETURNS nvarchar(4000)
AS
BEGIN
-- Declare the return variable here
DECLARE  @tmpdate datetime, @years int, @months int, @days int

SELECT @tmpdate = @date
SELECT @years = DATEDIFF(yy, @tmpdate, GETDATE()) - CASE WHEN (MONTH(@date) > MONTH(GETDATE())) OR (MONTH(@date) = MONTH(GETDATE()) AND DAY(@date) > DAY(GETDATE())) THEN 1 ELSE 0 END
SELECT @tmpdate = DATEADD(yy, @years, @tmpdate)
SELECT @months = DATEDIFF(m, @tmpdate, GETDATE()) - CASE WHEN DAY(@date) > DAY(GETDATE()) THEN 1 ELSE 0 END
SELECT @tmpdate = DATEADD(m, @months, @tmpdate)
SELECT @days = DATEDIFF(d, @tmpdate, GETDATE())
return  CAST(@years as nvarchar(50)) + ' Years '  + CAST(@months as nvarchar(50)) + ' Months ' + CAST(@days as nvarchar(50)) +' Days '
END

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