impdb oracle import

impdp system/ [password_of_sys] @ [SID]  remap_schema=[NAME_OF_SOURCE_SCHEMA]:[NAME_OF_TARGET_SCHEMA] TABLE_EXISTS_ACTION=REPLACE dumpfile=[filename].dmp

#example

impdp system/oracle@mydvsid remap_schema=dbschema1source:dbschema1target_COPY TABLE_EXISTS_ACTION=REPLACE dumpfile=dbexport1.dmp