In this chapter, you learned to systematically approach a database system and detect the most common issues people face with PostgreSQL. You learned about some important system tables as well as some other important factors that decide whether you will succeed or fail.
In the final chapter of this book, we will focus our attention on migrating to PostgreSQL. If you are using Oracle or some other database system, you might be willing to check out PostgreSQL. The next chapter will tell you how to do that.
