second
description
Syntax
INT SECOND(DATETIME date)
获得日期中的秒的信息，返回值范围从0-59。
参数为Date或者Datetime类型
example
mysql> select second('2018-12-31 23:59:59');
+-----------------------------+
| second('2018-12-31 23:59:59') |
+-----------------------------+
| 59 |
+-----------------------------+keywords
SECOND