Ora-39126 Worker Unexpected Fatal Error In Kupw-worker.prepare-data-imp 71 May 2026
The database room was too quiet, which was usually a sign that something loud was about to happen.
Navigate to the admin directory: cd $ORACLE_HOME/rdbms/admin Execute as SYSDBA: SQL> @dpload.sql Use code with caution. Copied to clipboard The database room was too quiet, which was
ORA-00932 – inconsistent datatypesORA-01461 – can bind a LONG value only for insert into a LONG columnORA-12899 – value too large for columnORA-22922 – nonexistent LOB valueORA-06550 – PL/SQL error in trigger
The error ORA-39126: Worker unexpected fatal error in KUPW$WORKER.PREPARE_DATA_IMP [71] is an internal exception within the Oracle Data Pump (impdp) utility. It occurs when a worker process encounters an unhandled state while preparing data for import, often leading to a premature job termination. Common Causes ORA-00932 – inconsistent datatypes ORA-01461 – can bind
Root Cause: The target database lacked Oracle Spatial license or had MDSYS schema invalid objects. The error ORA-39126: Worker unexpected fatal error in
If the import succeeds, run DBMS_STATS.GATHER_SCHEMA_STATS after the data is loaded. 2. Recompile Invalids on Source and Target