IF you want to copy your one database schema to another same metadata and all dml datain another different database but different name schema you just import with following command
Syntax and Description
REMAP_SCHEMA=source_schema:target_schema
expdp system/abc123 SCHEMAS=hr DIRECTORY=DATA_PUMP_DIR DUMPFILE=hr.dmp version=11.1.0.6.0 (if version incompatible)
impdp system DIRECTORY=DATA_PUMP_DIR DUMPFILE=BBS_PDS19032017.dmp REMAP_SCHEMA=hr:scott
For Reference:https://docs.oracle.com/database/121/SUTIL/GUID-619809A6-1966-42D6-9ACC-A3E0ADC36523.htm#SUTIL927
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