Check for leap year

Question

How do I check if a year is a leap year?

I have this code:

declare @year int
set @year = 1968

SELECT CASE WHEN @YEAR =  THEN \'LEAP          


        

Answer 1

Not sure how efficient this is compared to the other solutions. But is another option.

DECLARE @year int = 2016
SELECT CASE 
  WHEN DATEPART(dayofyear, DATEFROMPARTS(@year, 12, 31)) = 366
  THEN 'LEAP' 
  ELSE 'NOT LEAP' 
END