How to Automate Stored Procedure Execution in MySQL Using Event Scheduler?

How to Automate Stored Procedure Execution in MySQL

This article delves into scheduling a stored procedure in MySQL, providing a comprehensive solution for automating recurrent tasks.

A common scenario where automated procedure execution proves useful is purging outdated data based on time-stamps. Suppose you have a stored procedure named delete_rows_links that deletes activation links that are over a day old.

Scheduling the Stored Procedure

To schedule your stored procedure to run at specific intervals, MySQL offers a feature called Event Scheduler. This tool allows you to define events that trigger the execution of SQL statements or stored procedures on a pre-determined schedule.

To create an event that executes your delete_rows_links procedure every 5 seconds, follow these steps:

<code class="sql">CREATE EVENT myevent
    ON SCHEDULE EVERY 5 SECOND
    DO
      CALL delete_rows_links();</code>

This event will keep your activation link table up-to-date by removing outdated entries automatically.

Event Scheduler Usage Notes

• The ON SCHEDULE clause defines the frequency of event execution. In this case, EVERY 5 SECOND schedules the event to run every 5 seconds.
• The DO clause specifies the SQL statement or stored procedure to be executed. Here, it calls the delete_rows_links procedure.

Refer to the MySQL documentation for more advanced event scheduling options and customization capabilities. By utilizing Event Scheduler, you can automate your stored procedure executions and ensure efficient and regular maintenance of your database.

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