【多选题】
A A PDB can be plugged into a CDB only if both are of the same Oracle Database release.
B A PDB created from PDB$SEED must be set to READ WRITE after loading data.
C A non-CDB can be converted into a PDB.
D A PDB created from PDB$SEED must be set to READ ONLY after loading data.
E An unplugged PDB can be plugged into multiple CDBs simultaneously by sharing data files.
F A PDB unplugged from a container database(CDBs) can be plugged into a different CDB without altering any of schemas.
G A PDB in a remote CDB can be accessed transparently thereby aggregating results from local and remote PDBs.
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