It’s a good idea to keep track of how large your database is getting. You will want to check the size of it from time to time. When it starts getting to large, it’s time to start deleting stats, messages, domains, groups, etc that are no longer needed.
To access the database metrics page, click on the “Database Metrics” menu item in the “Help” menu.
This page will display a list of all the tables in the database along with the number of records contained in each.