Unexpected Fatal Error In Kupw-worker.prepare-data-imp 71 !full!: Ora-39126 Worker

The error ORA-39126: Worker unexpected fatal error in KUPW$WORKER.PREPARE_DATA_IMP [71] is a generic internal error in Oracle Data Pump that typically indicates an unhandled exception within the worker process during the data import preparation phase. Root Causes

or complex XML structures can occasionally cause the worker to crash during the initial data mapping. Recommended Solutions The error ORA-39126: Worker unexpected fatal error in

Exclude System Schemas: If performing a full import, ensure you are excluding system-internal schemas by using EXCLUDE=SCHEMA:"IN ('SYSMAN', 'ORDDATA', 'WMSYS')". SCOTT.DATA_TABLE ) and exclude it:

Step 4: Exclude the Problematic Table

Identify the table that fails (e.g., SCOTT.DATA_TABLE) and exclude it: The error ORA-39126: Worker unexpected fatal error in