mysql获取不同格式日期的方法

//1.获取年月日 时分秒 

select SYSDATE() AS '年月日 时分秒';
2020-07-02 16:36:17
//2.获取(年月日)

select DATE(CURDATE()) as '年月日';
select CURDATE() as '年月日';
select current_date AS '年月日';
 
2020-07-02
//3.获取(时分秒)：

select time(SYSDATE()) AS '时分秒';
select CURtime() AS '时分秒';

16:36:17
//4.获取年份

select YEAR(CURDATE()) AS '年';
select YEAR(SYSDATE()) AS '年';
select year(CURRENT_DATE) AS '年' ;
 
2020
//5.获取月份

select MONTH(CURDATE()) AS '月';
select MONTH(SYSDATE()) AS '月';
select month(CURRENT_DATE) AS '月';

7
//6.获取日期中的日 

select day(CURRENT_DATE) AS '日';
select day(CURDATE) AS '日';
select day(SYSDATE) AS '日';

3
//7.获取当年一月份

select CONCAT(YEAR(CURDATE()),'-','01');
 
2020-07
//8.获取当前系统小时：

select HOUR(SYSDATE()) AS '系统小时';

16
//9.获取当前系统分钟：

select MINUTE(SYSDATE()) AS '系统分钟';

36
//10.获取当前系统秒：

select SECOND(SYSDATE()) AS '系统秒';

17
//11.获取当前系统毫秒：
select MICROSECOND(SYSDATE()) AS '系统毫秒';
0