如何将mysql数据表中数据定时导入到同库中的另一张表

Question

想在每天23:59的时候将今天的签到数据表signInfo全部导入到同库中的另一张表yesterdaySignInfo中？只用sql语句能完成吗？

Answer 1

用mysql事件可以解决

//开启事件调度器

set global event_scheduler = on  

// 创建事件

delimiter $$
create event if not exists yesterday_sign_log
on schedule every 1 day
starts timestamp '2017-05-03 23:50'
on completion preserve enable
do begin
drop table if exists yesterdaySignInfo;
create table yesterdaySignInfo like signInfo;
insert into yesterdaySignInfo select * from signInfo;
end $$
delimiter;

Answer 2

sql可以这么写

drop table if exists yesterdaySignInfo;
create table yesterdaySignInfo like signInfo;
insert into yesterdaySignInfo select * from signInfo;