A recent post on the Joomla French forum was asking for being able to delete tables present in the Joomla database; the ones using a given prefix like
old_ or something like that.
Indeed, from time to time, it can be useful to take a look on the list of tables in your database and perhaps, you'll find tables prefixed with f.i.
old_ or an old tool you've used years ago (using the correct prefix but with a component you've removed since like
Years ago, I've written such PHP utility, let's see how to use it.