The following features are new in this release:
Enterprise User Security 12c Release 1 (12.1) includes the following new feature:
Oracle Database 12c Release 1 (12.1) introduces Oracle Pluggable Databases (PDB) that can be plugged in and out of Container Databases (CDB).
You can use Enterprise User Security with Pluggable Databases (PDBs), introduced in Oracle Database 12c Release 1 (12.1). Each PDB has its own Enterprise User Security metadata, such as global users, global roles, and so on. Each PDB should have its own identity in the directory.
See "Using Pluggable Databases" for more information on this feature.
See Also:
The information about how Oracle pluggable databases affects privileges in Oracle Database Security Guide