SELECT *
FROM employees
WHERE DAY(HIRE_DATE)=19 AND ( (YEAR(HIRE_DATE) MOD 4 = 0 )
AND ((YEAR(HIRE_DATE) % 100 != 0) OR (YEAR(HIRE_DATE) % 400 = 0)) );
SELECT *
FROM employees
WHERE DAY(HIRE_DATE)=19 AND ( (YEAR(HIRE_DATE) MOD 4 = 0 )
AND ((YEAR(HIRE_DATE) % 100 != 0) OR (YEAR(HIRE_DATE) % 400 = 0)) );
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