1、时间格式化成固定格式字符串

SELECT DATE_FORMAT(NOW(),'%Y-%m-%d %H:%i:%s')

2、获取时间戳

select UNIX_TIMESTAMP("2022-07-06 14:11:49")
select UNIX_TIMESTAMP(NOW())
select UNIX_TIMESTAMP()

3、时间戳格式化字符串

SELECT FROM_UNIXTIME(1657183074,'%Y-%m-%d %H:%i:%s')

  

-----------------------------------------------------------------Take more responsibility!---------------------------------------------------------