clocwork

AND `Object_DATA`.`Datestamp` < now() - INTERVAL 3 DAY  This makes it so you have to wait a minimum of 3 days since the last maintenance or from placing the object before maintaining will work. This value can be adjusted/removed as preferred.
ON COMPLETION NOT PRESERVE ENABLE just makes it so the sql event doesn't expire and get dropped after completing the first time and will allow it to be a repeating event.