检测事件是否开启 show variables like 'event_scheduler';
开启事件 set global event_scheduler = on;
创建一个存储过程
create procedure test() begin sql end;
创建一个事件 create event if not exists test on schedule every 30 second on completion preserve do call test();
关闭或开启执行事件 alter event event_name on completion preserve [enable | disable]
删除事件 drop event event_name;