Ora-39126 Worker Unexpected Fatal Error In Kupw-worker.prepare-data-imp 71 < CONFIRMED 2025 >

ORA-39126: Worker unexpected fatal error in KUPW-Worker.Prepare-Data-Imp 71

The ORA-39126 error is a critical issue that can occur during data import operations using Oracle Data Pump, a utility that enables you to export and import data and metadata from one database to another. This error is specifically related to the KUPW-Worker.Prepare-Data-Imp 71 process, which is a worker process responsible for preparing data for import. ORA-39126: Worker unexpected fatal error in KUPW-Worker

The ORA-39126 error message typically appears as follows: ORA-39126: Worker unexpected fatal error in KUPW-Worker