MySQL時間差函數TIMESTAMPDIFF，獲取兩個時間之間的月份、天數等

一、獲取兩個時間之間的天數

select TIMESTAMPDIFF(DAY, '2020-03-20 23:59:00', '2020-03-25 00:00:00') as diff;

二、獲取 兩個時間之間的月份

select TIMESTAMPDIFF(month, '2020-01-20 23:59:00', '2020-03-25 00:00:00') as diff;

三、獲取兩個時間之間的 

select TIMESTAMPDIFF(HOUR, '2020-03-23 23:59:00', '2020-03-25 00:00:00') as diff;

select TIMESTAMPDIFF(minute, '2020-01-20 23:59:00', '2020-03-25 00:00:00') as diff;
select TIMESTAMPDIFF(second, '2020-01-20 23:59:00', '2020-03-25 00:00:00') as diff;
select TIMESTAMPDIFF(year, '2020-01-20 23:59:00', '2020-03-25 00:00:00') as diff;