MySQL scheduled execution script (scheduled task) instance

Check whether event is enabled

The Code is as follows:

Show variables like '% sche % ';

Enable the event plan

The Code is as follows:

Set global event_scheduler = 1;

Create a stored procedure test

The Code is as follows:

Create procedure test ()

BEGIN

Update examinfo SET endtime = now () WHERE id = 14;

END;

Create event e_test

The Code is as follows:

Create event if not exists e_test

On schedule every 30 second

On completion preserve

Do call test ();

The stored procedure test is executed every 30 seconds, and the current time is updated to the endtime field of the Record id = 14 in examinfo.

Close event task

The Code is as follows:

Alter event e_test ON

Completion preserve disable;

Account Opening event task

The Code is as follows:

Alter event e_test ON

Completion preserve enable;

All tests are successful. The test environment is mysql 5.4.2-beta-community mysql community server (GPL)

The above content is an introduction to the regular execution of MySQL. I hope you will have some gains.

The scheduled mysql task disappears after being restarted.

You only need to modify the configuration.

Event_scheduler is set to OFF in mysql config. Change the configuration to ON in mysql.