show variables like 'event_scheduler';
2.开启事件
set global event_scheduler = on;
3.创建一个存储过程
程序代码：delimiter //
create procedure test()
begin
update project set create_time = now();
end;
create procedure test()
begin
update project set create_time = now();
end;
4.创建一个事件
create event if not exists e_test
on schedule every 30 second
on completion preserve
do call test();
on schedule every 30 second
on completion preserve
do call test();
5.关闭或开启执行事件
alter event event_name on completion preserver [enable | disable]
6.删除事件
drop event event_name;