Check for leap year

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花落未央
花落未央 2020-12-11 01:19

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          


        
7条回答
  •  小蘑菇
    小蘑菇 (楼主)
    2020-12-11 02:04

    Check for 29th Feb:

    CASE WHEN ISDATE(CAST(@YEAR AS char(4)) + '0229') = 1 THEN 'LEAP YEAR' ELSE 'NORMAL YEAR' END
    

    or use the following rule

    CASE WHEN (@YEAR % 4 = 0 AND @YEAR % 100 <> 0) OR @YEAR % 400 = 0 THEN 'LEAP YEAR'...
    

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