I'm browsing through my database (which is already a couple a years old now) and I find a lot of records that are not in use anymore. For example a DNS record that already has been removed, is still in the database. Is there a way to cleanup the database so anything that is not needed anymore is removed?
In that case all you can do is clean up the database manually, but please make a backup of the database before you do this as there's a high risk that you mess up the database.