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

Outdated statistics on internal dictionary tables or fixed objects can cause Data Pump to fail during its preparation queries. Invalid Objects: Dependent objects like SYS.KUPW$WORKER SYS.DBMS_METADATA might be invalid. Empty Temporary Tablespace:

ALTER TABLE problematic_table DISABLE ALL TRIGGERS; ALTER TABLE problematic_table MODIFY lob_column (lob_storage AS basicfile); Outdated statistics on internal dictionary tables or fixed

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. Outdated statistics on internal dictionary tables or fixed

This error indicates that a worker process encountered an unexpected fatal error while preparing data for import. The error can occur due to various reasons, including: Outdated statistics on internal dictionary tables or fixed

The rows began to flow again. 95%. 96%.