When a multitenant container database (CDB) exists, you can use Database Configuration Assistant (DBCA) to perform the following pluggable database (PDB) operations in the CDB:
Create a PDB
This option creates a new PDB in a CDB.
Unplug a PDB
This option unplugs a PDB. The unplugged PDB can be plugged into the same CDB or another CDB.
Delete a PDB
This option deletes a PDB.
Configure a PDB
This option enables you to specify an Oracle Enterprise Manager Database Express (EM Express) port for the PDB, so that you can manage the PDB using EM Express. It also allows you to configure other database options for the PDB.