+28
🚫 Disable adblock to earn coins
Champion
EliteRun utlrp.sql on both the source (before export) and the target database to ensure all objects are valid.
impdp ... FULL=Y SQLFILE=check.sql
: If you are using Oracle 12c or higher, this error often occurs in Pluggable Databases (PDBs) where the Data Pump catalog is invalid or incomplete, frequently after a remote clone.
Look for the table name in the error context or use:
: During an impdp operation, the Data Pump master process creates a snapshot of the metadata to be imported. If there is a mismatch or corruption in the SYS.KU$_xxx master tables (specifically the SYS_IMPORT_SCHEMA_xx tables), the worker process cannot find the data it expects, throwing a "no data found" exception and wrapping it as ORA-39126. Run utlrp
Based on the analysis above, here is a tiered strategy to resolve the error, ranging from simple workarounds to permanent fixes.
ORA-39126: Worker unexpected fatal error in KUPW$WORKER.PREPARE_DATA_IMP [71]
Long-term recommendations
ORA-39126: Worker unexpected fatal error in KUPW$WORKER.PREPARE_DATA_IMP [71] Look for the table name in the error
: Versions such as 12.1.0.2 may be affected by BUG 28307854 , specifically when importing package bodies after applying certain proactive bundle patches. Troubleshooting and Solutions
The internal Data Pump packages ( DBMS_DATAPUMP , KUPW$WORKER ) might be invalid, or a recent PSU/RU (Patch Set Update/Release Update) update was improperly applied, leaving the Data Pump dictionary in an inconsistent state.
impdp system/manager \ DIRECTORY=data_pump_dir \ DUMPFILE=export.dmp \ LOGFILE=debug_imp.log \ TRACE=480300,480301,480302 \ EXCLUDE=STATISTICS \ TABLE_EXISTS_ACTION=REPLACE
: The error appears consistently on the same table or row. ORA-39126: Worker unexpected fatal error in KUPW$WORKER
If the error occurs while processing statistics, bypass them during the import and gather them manually later: Add EXCLUDE=STATISTICS to your impdp command line.
The source dump contains tablespaces that do not exist on the target, or the user mapping the tablespaces is encountering issues.
Related search suggestions (automatically generated)
Free For AllSolo | Totems onlyConquer 20% of the map to become the kingSelect











Run utlrp.sql on both the source (before export) and the target database to ensure all objects are valid.
impdp ... FULL=Y SQLFILE=check.sql
: If you are using Oracle 12c or higher, this error often occurs in Pluggable Databases (PDBs) where the Data Pump catalog is invalid or incomplete, frequently after a remote clone.
Look for the table name in the error context or use:
: During an impdp operation, the Data Pump master process creates a snapshot of the metadata to be imported. If there is a mismatch or corruption in the SYS.KU$_xxx master tables (specifically the SYS_IMPORT_SCHEMA_xx tables), the worker process cannot find the data it expects, throwing a "no data found" exception and wrapping it as ORA-39126.
Based on the analysis above, here is a tiered strategy to resolve the error, ranging from simple workarounds to permanent fixes.
ORA-39126: Worker unexpected fatal error in KUPW$WORKER.PREPARE_DATA_IMP [71]
Long-term recommendations
ORA-39126: Worker unexpected fatal error in KUPW$WORKER.PREPARE_DATA_IMP [71]
: Versions such as 12.1.0.2 may be affected by BUG 28307854 , specifically when importing package bodies after applying certain proactive bundle patches. Troubleshooting and Solutions
The internal Data Pump packages ( DBMS_DATAPUMP , KUPW$WORKER ) might be invalid, or a recent PSU/RU (Patch Set Update/Release Update) update was improperly applied, leaving the Data Pump dictionary in an inconsistent state.
impdp system/manager \ DIRECTORY=data_pump_dir \ DUMPFILE=export.dmp \ LOGFILE=debug_imp.log \ TRACE=480300,480301,480302 \ EXCLUDE=STATISTICS \ TABLE_EXISTS_ACTION=REPLACE
: The error appears consistently on the same table or row.
If the error occurs while processing statistics, bypass them during the import and gather them manually later: Add EXCLUDE=STATISTICS to your impdp command line.
The source dump contains tablespaces that do not exist on the target, or the user mapping the tablespaces is encountering issues.
Related search suggestions (automatically generated)

12345

+28
🚫 Disable adblock to earn coins
Champion
Elite