DECLARE 
  compat BOOLEAN := FALSE;
  BEGIN
  compat := DBMS_PDB.CHECK_PLUG_COMPATIBILITY(pdb_descr_file => '/tmp/pdb12.xml', pdb_name => 'pdb12');
  if compat then
  DBMS_OUTPUT.PUT_LINE('Is pluggable compatible? YES');
  else DBMS_OUTPUT.PUT_LINE('Is pluggable compatible? NO');
  end if;
end;
/