-- 为了节省调试事件相关问题的时间,请记住,必须打开全局事件处理程序来处理事件。
-- 查看全局事件是否开启
SHOW VARIABLES WHERE variable_name='event_scheduler';
-- 开启事件功能
SET GLOBAL event_scheduler=1;
DROP EVENT IF EXISTS EVENT_01;
CREATE EVENT EVENT_01
ON SCHEDULE EVERY 1 MINUTE
ON COMPLETION PRESERVE
DO
DELETE FROM `dbmjpms`.`table_01`
WHERE DATEDIFF(NOW(), time) > 90;
SHOW EVENTS;
SELECT * FROM table_01