sql - Replace year in datetime date -

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I have a table with the column ( dateDT ), which is based on date time and one variable Formatted in the form of my year in the form ( @selYear ), formatted as int.

How can I change the variable input from my table within a date of the year and convert the result into a one time format?

I have tried the following dates incorrect dates / year: 

  Convert (DATETIME, (SSLEER + MNST (DDT) + DAY (DDDT )) DTT as the date,

Example: 

  @selYear = 2014 dateDT = 2010-05-02 00: 00: 00.000

In this case, my result should be: 

  dateDT = 2014-05-02 00: A solution using the function:  
 
 
  
  DECLARE @selYear VARCHAR (4) = 2014 DECLARE @dateDT DATETI ME = '2010-05-02 00: 00: 00.000' SELECT DATEADD (YEAR, @ selYear - YEAR (@dateDT), @ dateDT)  
 
 
 with this small Example is the current year: 
 
  DECLARE @selYear INT = 200 9 DECLARE @dateDT DATETIME = '2010-05-02 00: 00: 00.000' Selection Date ADD (YEAR, @ selYear - YEAR ( @dateDT), @ dateDT)

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