The API DBMS_LOB.COPY_DBFS_LINK(DSTLOB, SRCLOB, FLAGS) provides the ability to copy a linked SecureFiles LOB.

sBy default, the LOB is not obtained from the DBFS HSM Store during this operation; this is a copy-by-reference operation that exports the DBFS path name (at source side) and imports it (at destination side). The flags argument can dictate that the destination has a local copy in the database and references the LOB data in the DBFS HSM Store.