多选题Which three statements are true concerning unplugging a pluggable database (PDB)?（）AThe PDB must be open in read only mode.BThe PDB must be dosed.CThe unplugged PDB becomes a non-cdb.DThe unplugged PDB can be plugged into the same multitenant container database (CDB)EThe unplugged PDB can be plugged into another cdb.FThe PDB data files are automatically removed from disk.
多选题
Which three statements are true concerning unplugging a pluggable database (PDB)?（）
A
The PDB must be open in read only mode.
B
The PDB must be dosed.
C
The unplugged PDB becomes a non-cdb.
D
The unplugged PDB can be plugged into the same multitenant container database (CDB)
E
The unplugged PDB can be plugged into another cdb.
F
The PDB data files are automatically removed from disk.
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