MySql regularly executes tasks

Recently wrote a small project, need to regularly query data and add to another table. The idea is as follows:

First, create a stored procedure

Second, create a transaction to periodically execute a stored procedure

(This is the way of thinking, simple and clear)

Looking at the first process, the following I will write in the simplest SQL:

 1. Create a stored procedure

CREATE PROCEDURE up_con_outTime()
BEGIN
	select * from student;
END;

2. Create a transaction to periodically execute a stored procedure

--DEFINER=`root`@`localhost` 1.%允许来自任何ip的连接2.localhost允许本机的连接
CREATE DEFINER=`root`@`localhost` EVENT up_con_outTime_event
ON SCHEDULE EVERY 1 MINUTE STARTS '2018-10-13 09:57:59'
ON COMPLETION NOT PRESERVE ENABLE
DO CALL up_con_outTime

The stored procedure is also good, and the transaction is good. The next step is to execute!

1. Open Event

Check if the event scheduler is enabled >>> show variables like '% sche%';

Open event >>> set GLOBAL event_scheduler = ON;

2. Turn on the transaction timer

ALTER EVENT up_con_outTime_event ENABLE;

End closes the transaction timer (if necessary)

ALTER EVENT up_con_outTime_event DISABLE;

Another: attach an alternate sql statement

View stored procedures

show procedure status

View events

select * from mysql.event

Delete event

drop event test_aaa_event;

View event running status

select * from mysql.event

View stored procedure source code

SHOW CREATE PROCEDURE sel_consumelogs_tostatics;

View event creation source code

SHOW CREATE EVENT jfinal_consta_event