Ora-39126 Worker Unexpected Fatal Error In Kupw-worker.prepare-data-imp 71 Jun 2026

The database room was too quiet, which was usually a sign that something loud was about to happen.

: The Data Pump packages or catalog objects themselves may be invalid or corrupted within the database. The database room was too quiet, which was

This error typically occurs during the phase ( impdp ), specifically when the Data Pump worker process is preparing to load data into a table. The error is a "wrapper" or "umbrella" error—meaning it signals a fatal failure, but the root cause is often hidden in a secondary error stack or requires deep investigation. The database room was too quiet

Standard practice is to perform imports using a user with the DATAPUMP_IMP_FULL_DATABASE role (like SYSTEM ) rather than using the AS SYSDBA connection, which can cause unexpected behavior in worker processes. The database room was too quiet, which was