According to: http://yong321.freeshell.org/oranotes/DataPump.txt by Yong Huang.
If the table was in nologging then impdp do not generate redo log. so: 1) Impdp structure only. 2) Alter all tables to nologging. 3) Impdp with ignore=y with network_link. 4) Alter all tables back to logging. Use at your own risk. : I did not check that what he writes is correct. Adar Yechiel Rechovot, Israel Rich Jesse wrote:
I've alsotried using the NETWORK_LINK option of impdp, but it refuses to use APPEND.