Question

Basically I want to truncate a table every X days but I don’t want to use cron. I would like to have a kind of built in script inside the php file to do this and maybe sql triggers can help me out. Unfortunately I don’t know how to use them.

Answer 1

Depending on the version of MySQL, you might have access to CREATE EVENT which allows MySQL to trigger its own processes at scheduled times.

e.g.

CREATE EVENT myevent
    ON SCHEDULE EVERY 1 DAY
    DO
      UPDATE myschema.mytable SET mycol = mycol + 1;

To run a task each day

Other databases may have equivalents, though you don’t identify the database that you’re using.