If the problem relates to storage or segments:
-- Run these as a user with SYSDBA privileges EXEC DBMS_STATS.GATHER_DICTIONARY_STATS; EXEC DBMS_STATS.GATHER_FIXED_OBJECTS_STATS; Use code with caution. Copied to clipboard 2. Rebuild Data Pump Components If the problem relates to storage or segments:
The structure of the error message is critical for diagnosis: Use the EXCLUDE=SCHEMA parameter for system schemas: To
If you are performing a full database import, ensure that you are not importing system-level schemas that are already present in the target, as this can corrupt the KUPW$WORKER process. Use the EXCLUDE=SCHEMA parameter for system schemas: If the problem relates to storage or segments:
To understand why this error happens, you need to look at how Data Pump handles data loads.
can trigger unexpected behavior or performance issues; it is recommended to use a user with the DATAPUMP_IMP_FULL_DATABASE role instead. Metadata Corruption : The Data Pump packages or required views (like SYS.DBMS_METADATA ) might be invalid or missing. Version Mismatch
Troubleshooting ORA-39126: Worker Unexpected Fatal Error in KUPW$WORKER.PREPARE_DATA_IMP [71]