mysql stored procedures and timer calls

1. Insert the user2 table query data into the user table in batches--stored procedure

DELIMITER $$

CREATE PROCEDURE `存储过程名称`()
BEGIN
INSERT INTO `user`
            (
             `userid`,
             `username`,
             `userage`
            )
SELECT `userid2` AS userid,
       `username2` AS username,
       `userage2` AS userage
FROM  `user2`
WHERE userid2 < 50;

END$$
DELIMITER ;

 2. Create a timer

#创建定时器
create event if not exists 定时器名称
ON SCHEDULE EVERY 1 DAY STARTS DATE_ADD(DATE_ADD(CURDATE(), INTERVAL 1 DAY), INTERVAL 1 HOUR)    --每天一点执行
on completion PRESERVE
do call 存储过程名称();

3. Start the timer

#启动定时器
SET GLOBAL event_scheduler = 1;
#停止定时器
SET GLOBAL event_scheduler = 0;

4. Turn on timed events (it is turned on by default. If the timer is turned on and the stored procedure is not executed, the event is not turned on)

#开启事件
ALTER EVENT 定时器名称 ON  COMPLETION PRESERVE ENABLE;  
#关闭事件
ALTER EVENT 定时器名称 ON  COMPLETION PRESERVE DISABLE;

5. Check the status of the timer

#查看定时器状态
SHOW VARIABLES LIKE '%sche%'; 

You can use the sqlyong visualization tool to modify stored procedures or timers.