FROM { src_pdb_name [ @ dblink ] } | { NON$CDB @ dblink }
  [ pdb_storage_clause ]
  [ file_name_convert ]
  [ path_prefix_clause ]
  [ tempfile_reuse_clause ]
  [ SNAPSHOT COPY ]
  [ user_tablespaces_clause ]
  [ standbys_clause ]
  [ logging_clause ]
  [ create_file_dest_clause ]
  [ NO DATA ]