The error message may not immediately name the table. Run your impdp command again with additional logging:
Refreshing the database's internal statistics often resolves these internal worker errors.
If the issue is in metadata preparation, try importing only the data ( CONTENT=DATA_ONLY ) after manually creating the schema objects, or vice versa, to isolate whether the issue is data-related or metadata-related. Step 4: Validate the Dumpfile
Repeated imports into the same schema without proper cleanup can corrupt the target’s metadata state.
Bugs in specific Oracle versions (often fixed in later Patch Sets). Conflicts with "External Tables" or "Virtual Columns."
Once the likely cause is identified, several strategies can be employed:
Because ORA-39126 is an unhandled internal exception wrapper, the true culprit is often found in subsequent lines of the error log or the database alert log. In the context of PREPARE_DATA_IMP [71] , the error usually boils down to a handful of architectural issues: 1. Data Pump Metadata Component Corruption
Prevention is better than cure. Implement the following strategies to minimize the risk of encountering this error in Data Pump jobs:
ORA-39126 is a Data Pump error that occurs when there is an issue with the worker process. Here's a breakdown of the error:
The error message may not immediately name the table. Run your impdp command again with additional logging:
Refreshing the database's internal statistics often resolves these internal worker errors.
If the issue is in metadata preparation, try importing only the data ( CONTENT=DATA_ONLY ) after manually creating the schema objects, or vice versa, to isolate whether the issue is data-related or metadata-related. Step 4: Validate the Dumpfile
Repeated imports into the same schema without proper cleanup can corrupt the target’s metadata state.
Bugs in specific Oracle versions (often fixed in later Patch Sets). Conflicts with "External Tables" or "Virtual Columns."
Once the likely cause is identified, several strategies can be employed:
Because ORA-39126 is an unhandled internal exception wrapper, the true culprit is often found in subsequent lines of the error log or the database alert log. In the context of PREPARE_DATA_IMP [71] , the error usually boils down to a handful of architectural issues: 1. Data Pump Metadata Component Corruption
Prevention is better than cure. Implement the following strategies to minimize the risk of encountering this error in Data Pump jobs:
ORA-39126 is a Data Pump error that occurs when there is an issue with the worker process. Here's a breakdown of the error:
