#1、建立存储过程供事件调用

delimiter//

drop procedure if exists middle_proce//

create procedure middle_proce()

begin

DELETE FROM jg_bj_comit_log WHERE comit_time < SUBDATE(NOW(),INTERVAL 2 MONTH);

optimize table jg_bj_comit_log;

DELETE FROM jg_bj_order_create WHERE created_on < SUBDATE(NOW(),INTERVAL 3 MONTH);

optimize table jg_bj_order_create;

DELETE FROM jg_bj_order_match WHERE created_on < SUBDATE(NOW(),INTERVAL 3 MONTH);

optimize table jg_bj_order_match;

DELETE FROM jg_bj_order_cancel WHERE created_on < SUBDATE(NOW(),INTERVAL 3 MONTH);

optimize table jg_bj_order_cancel;

DELETE FROM jg_bj_operate_arrive WHERE created_on < SUBDATE(NOW(),INTERVAL 3 MONTH);

optimize table jg_bj_operate_arrive;

DELETE FROM jg_bj_operate_depart WHERE created_on < SUBDATE(NOW(),INTERVAL 3 MONTH);

optimize table jg_bj_operate_depart;

DELETE FROM jg_bj_operate_login WHERE created_on < SUBDATE(NOW(),INTERVAL 3 MONTH);

optimize table jg_bj_operate_login;

DELETE FROM jg_bj_operate_logout WHERE created_on < SUBDATE(NOW(),INTERVAL 3 MONTH);

optimize table jg_bj_operate_logout;

DELETE FROM jg_bj_operate_pay WHERE created_on < SUBDATE(NOW(),INTERVAL 3 MONTH);

optimize table jg_bj_operate_pay;

DELETE FROM jg_bj_position_driver WHERE created_on < SUBDATE(NOW(),INTERVAL 3 MONTH);

optimize table jg_bj_position_driver;

DELETE FROM jg_bj_position_vehicle WHERE created_on < SUBDATE(NOW(),INTERVAL 3 MONTH);

optimize table jg_bj_position_vehicle;

DELETE FROM jg_bj_rated_passenger WHERE created_on < SUBDATE(NOW(),INTERVAL 3 MONTH);

optimize table jg_bj_rated_passenger;

end//

delimiter;

#2、开启event(要使定时起作用，MySQL的常量GlOBAL event_schduleer 必须为on 或者1)

show variables like 'event_scheduler'

set global event_scheduler='on'

#3、创建Evnet事件

drop event if exists middle_event;

create event middle_event

on schedule every 1 DAY STARTS '2017-12-05 00:00:01'

on completion preserve ENABLE

do call middle_proce();

#4、开启Event 事件

alter event middle_event on completion preserve enable;

#5、关闭Event 事件

alter event middle_event on completion preserve disable;