Ora-39126 Worker Unexpected Fatal Error In Kupw-worker.prepare-data-imp 71 Verified ⏰

The ORA-39126 error during Data Pump import generally indicates a metadata corruption issue or a conflict involving statistics, often manifesting as an ORA-01403 "no data found" error. Common solutions involve excluding statistics ( EXCLUDE=STATISTICS ) during the import or revalidating the Data Pump components using dpload.sql .For further discussion on this error, see the Oracle Support Community .

• VARCHAR2 to CLOB conversion issues
• DATE vs TIMESTAMP mismatches
• Character set conversion failures (e.g., AL32UTF8 to WE8MSWIN1252)
• Invalid values for NUMBER or INTERVAL columns

Immediate impact

Common Root Causes

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 ORA-39126 error during Data Pump import generally

Understanding and Resolving ORA-39126: A Critical Hurdle in Oracle Data Pump Imports