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days_diff

days_diff

description

Syntax

INT days_diff(DATETIME enddate, DATETIME startdate)

开始时间到结束时间相差几天,对日期的判断精确到秒,并向下取整数。 区别于datediff,datediff函数对日期的判断精确到天。

example

mysql> select days_diff('2020-12-25 22:00:00','2020-12-24 22:00:00');
+---------------------------------------------------------+
| days_diff('2020-12-25 22:00:00', '2020-12-24 22:00:00') |
+---------------------------------------------------------+
| 1 |
+---------------------------------------------------------+

mysql> select days_diff('2020-12-25 22:00:00','2020-12-24 22:00:01');
+---------------------------------------------------------+
| days_diff('2020-12-24 22:00:01', '2020-12-25 22:00:00') |
+---------------------------------------------------------+
| 0 |
+---------------------------------------------------------+

keywords

days_diff