Data pump to refresh schema in the same database
Below steps can be followed to import data from one schema to another, inside single db instance. impdp with network_link is used. Realted question on OTN --> https://community.oracle.com/message/13652057#13652057 SQL> create public database link impdpt connect to SYSTEM identified by abc123 using 'DG1'; Database link created. SQL> [oracle@prima admin]$ impdp system/abc123 directory=DATA_PUMP_DIR network_link=impdpt schemas=hr remap_schema=hr:hrtn logfile=test_same.log Import: Release 11.2.0.4.0 - Production on Tue Dec 29 02:53:24 2015 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options Starting "SYSTEM"."SYS_IMPORT_SCHEMA_01": system/******** directory=DATA_PUMP_DIR network_link=impdpt schemas=hr remap_schema=hr:hrtn logfile=...