I've been experimenting with Oracle12c's pluggable database feature and have noticed that when I 'drop pluggable database pdb1 including datafiles' I get the message that the Pluggable database was dropped. I also see that all tablespace files for the PDB except the SYSTEM datafile were deleted.
I'd like to remove the folder that was used for the pluggable database after the PDB is dropped, but can't because the SYSTEM datafile is left behind.
Is it possible to delete the SYSTEM datafile for a pluggable database after it's been dropped? Or is this forever part of the container database?
Thanks