Delete MySQL Row after 30 minutes using Cron Jobs/Event Scheduler

Question

I am quite the noob at MySQL and PHP/Cron Jobs so if you all could explain it easily as in where to put the event, etc, that\'d be great, anyways, on with the question.

Answer 1

The SQL would be

DELETE FROM my_table
WHERE timestamp < NOW() - INTERVAL 30 MINUTE

Write a PHP script that executes this SQL, and add a crontab entry that runs it every 30 minutes. Or use the MySQL Event Scheduler to run it periodically; it is described here.