postgresql difference between two dates in days
SELECT AGE('2012-03-05', '2010-04-01'), DATE_PART('year', AGE('2012-03-05', '2010-04-01')) AS years, DATE_PART('month', AGE('2012-03-05', '2010-04-01')) AS months, DATE_PART('day', AGE('2012-03-05', '2010-04-01')) AS days; ... -- This will give you full years, month, days ... between two dates: -- age | years | months | days -- -----------------------+-------+--------+------ -- 1 year 11 mons 4 days | 1 | 11 | 4