Which three methods can be used to create a pluggable database (PDB) in an existing multitenant container database (CDB)?
A.
Use PDB$SEED for creating a PDB.
B.
Use the DBMS_PDB package to plug a non-CDB into an existing CDB.
C.
Clone the existing PDB.
D.
Use Enterprise Manager Database Express to create a PDB in an existing CDB.
E.
Use the DBMS_PDB package to plug a pre-Oracle 12c database into an existing CDB.
Explanation:
Use the CREATE PLUGGABLE DATABASE statement to create a pluggable database (PDB).
This statement enables you to perform the following tasks:
* Create a PDB by using the seed as a template
Use the create_pdb_from_seed clause to create a PDB by using the seed in the multitenant container database (CDB) as a template.
* Create a PDB by plugging an unplugged PDB or a non-CDB into a CDB
Use the create_pdb_from_xml clause to plug an unplugged PDB or a non-CDB into a CDB, using an XML metadata file.
* Create a PDB by cloning an existing PDB or non-CDB
Use the create_pdb_clone clause to create a PDB by copying an existing PDB or non-CDB and then plugging the copy into the CDB.
References: https://docs.oracle.com/database/121/SQLRF/statements_6010.htm