MySQL定时任务EVENT事件的使用方法

show variables like '%event_scheduler%';

show PROCESSLIST;

set global event_scheduler = 1;

set global event_scheduler = 0;

-- 创建定时任务
create EVENT sync_lastday_attendance
ON SCHEDULE
EVERY '1' DAY STARTS '2021-09-19 05:00:00'
DO call sync_lastday_attendance()

SELECT event_name,event_definition,interval_value,interval_field,status FROM information_schema.EVENTS;

show create EVENT sync_lastday_attendance;

-- 创建定时任务 8点执行 调用test()存储过程
ALTER EVENT sync_lastday_attendance
ON SCHEDULE
EVERY '1' DAY STARTS '2021-09-19 08:00:00'
DO call test()

alter event sync_lastday_attendance on completion preserve enable;//开启定时任务

alter event sync_lastday_attendance on completion preserve disable;//关闭定时任务

drop event sync_lastday_attendance; //删除定时任务

on schedule every 1 week //每周执行1次
on schedule every 1 day //每天执行1次

on schedule at current_timestamp()+interval 5 day //5天后执行
on schedule at '2021-09-19 05:00:00' //在2021年9月19日，5点整执行

on schedule every 1 day starts current_timestamp()+interval 3 day ends current_timestamp()+interval 1 month 
//3天后开始每天都执行一次到下个月底结束
on schedule every 1 day ends current_timestamp()+interval 3 day 
//从现在起每天执行，执行3天