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

Stale dictionary or fixed object statistics are frequent culprits, causing Data Pump to miscalculate its execution plan.

The error occurs during an impdp operation, typically after the table has been created or truncated but before rows are inserted. It can happen with: Stale dictionary or fixed object statistics are frequent