Pluggable databases, affectionately called PDBs for the remainder of this chapter, are a major new concept in the Oracle database and the outstanding new feature to be aware of in Oracle 12.1. From the author’s point of view the introduction of Pluggable Databases into the Oracle kernel is a true major new feature of a magnitude which we have not seen for a long time. In fact, the novelty of this new feature is comparable to the introduction of Automatic Storage Management in 10g Release 1, which radically changed the way we work with Oracle and storage. In comparison, the release of 11g Releases 1 and 2 were moderate improvements of the existing previous release—with new features in certain areas—but nowhere near as novel as Pluggable Databases. The following chapter gives you insight into managing Pluggable Databases in Oracle 12.1, including the new database types available. I hope that by the end of it you will be as excited as I am.