Replace year in datetime date

Question

I have a table with a column (dateDT), formatted as datetime and a variable input for the year (@selYear) in my Select, formatted as int.

Answer 1

A solution using DATEADD function:

DECLARE @selYear VARCHAR(4) = 2014
DECLARE @dateDT DATETIME = '2010-05-02 00:00:00.000'


SELECT DATEADD(YEAR,@selYear - YEAR(@dateDT),@dateDT)

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This is example with smaller then current year:

DECLARE @selYear INT = 2009
DECLARE @dateDT DATETIME = '2010-05-02 00:00:00.000'


SELECT DATEADD(YEAR,@selYear - YEAR(@dateDT),@dateDT)