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