i'm managing lot of websites, few of those are Joomla. Last webmaster has gone without giving any help and i've those Joomla DB that i cannot understand which websites are related to. I mean, on wordpress, i'd see on "option" table to check URL but where i can find this information on Joomla? Thanks
So, no chances. Only solution i see is to backup and delete DBs one by one, if more than one, and see which website has gone "offline"