-- 查看事件调度器是否开启

SHOW VARIABLES LIKE 'event_scheduler';

-- 打开事件调度器

SET GLOBAL event_scheduler = 1;

-- 创建事件

CREATE EVENT schedule_delete_position

ON SCHEDULE

EVERY 12 HOUR

STARTS CURRENT_TIMESTAMP

DO

DELETE from biz_tag_position where TIMESTAMPDIFF(DAY,DATE_FORMAT(update_time,'%Y-%m-%d'),CURDATE())>=1;

-- 关闭事件

ALTER EVENT schedule_delete_position ON COMPLETION PRESERVE DISABLE;

-- 删除事件

DROP EVENT IF EXISTS schedule_delete_position;

-- 开启事件

ALTER EVENT schedule_delete_position ON COMPLETION PRESERVE ENABLE;

-- 查看事件

SHOW  CREATE EVENT schedule_delete_position