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DataPump Import Fails With Errors ORA-39097, ORA-39065, ORA-12801, ORA-1460 (Doc ID 1485879.1)

Last updated on MAY 17, 2021

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 10.2 to 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Information in this document applies to any platform.


Data Pump Import in a RAC database fails with errors like:

ORA-39097: Data Pump job encountered unexpected error -12801
ORA-39065: unexpected master process exception in MAIN
ORA-12801: error signaled in parallel query server PZ99, instance <instance_name>
ORA-01460: unimplemented or unreasonable conversion requested Job <job_name> stopped due to fatal error at <failure_time>.


The fix for <Bug 9375300> is applied (this fix is included starting with PSU 5 and in

The workaround from:
<Note 1427537.1> - DataPump Import (IMPDP) Fails With Errors ORA-39097 ORA-39065 ORA-12801 ORA-1460 In RAC Environment
to set PARALLEL_DEGREE_POLICY=MANUAL in all instances was used without success.


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