首发日期:2018-04-14
实验表数据(下面的运行数据基于这个表):
create table student(
name varchar(15),
gender varchar(15),
age int
);
insert into student values("lilei","male",18);
insert into student values("alex","male",17);
insert into student values("jack","male",20);
insert into student values("john","male",19);
insert into student values("nullpeople","male",null);
日期函数还是比较常用的,想了解更多,可以参考官方文档:
https://dev.mysql.com/doc/refman/5.7/en/date-and-time-functions.html
想了解更多函数,可以参考官方文档(下面的是5.7的):
https://dev.mysql.com/doc/refman/5.7/en/func-op-summary-ref.html