I have a customer that ran out of database space with their express licensing plan. So we backed up their current data and deleted 3 years worth of data, leaving 2 years. The 3 years worth of data we deleted, 3000 instances, only released 50KB of data, not even enough to run the 10.3 to 10.4 upgrade script.
So given that I have already deleted 3 of the 5 years of data from the database and gained essentially no space. How do I see which instances are taking up the 10GB of total space?