Change parameters in your system and find out how that will affect the rest of your database Summaries to help DBAs with experience of other database systems Monitor your users so that you can see whether they are connected, what they are running, and whether their account has become blocked Identify temporary data and the effect that it has on your system Advanced technical tips and scripts for experienced users Control the automatic database maintenance program Identify and fix bloated tables and indexes How and when to VACUUM your databases