Bulk Insert To Oracle Error :- ora-00604 occurred at recursive level 1 with ora-00054 resource busy and aquire with NOWAIT specified or timeout expired

Help Studio
, ,
1

One of my co-worker is having this issue when using the bulk insert activity for oracle , can anyone help me out here, before this error , he was getting the column datatype mismatch error which has now gone when used read csv instead of read range , but now this new error comes up

ora-00604 occurred at recursive level 1 ,
with,
 ora-00054 resource busy and aquire with NOWAIT specified or timeout expired
2

@indiedev91 I hope this will solve your issue

I’d be glad to help your coworker troubleshoot the ORA-00604 error they’re encountering with the UiPath Bulk Insert activity for Oracle. Here’s a consolidated response incorporating potential causes and solutions:

Understanding the Error:

  • ORA-00604: This error indicates an issue during a recursive SQL statement execution within the Oracle database. Bulk Insert activities often involve internal database operations that might trigger this error.
  • ORA-00054: This additional error suggests that a resource (likely a table lock) is currently busy, and the NOWAIT option didn’t work or the timeout expired. This could prevent the Bulk Insert activity from completing successfully.

Potential Causes and Solutions:

  1. Concurrent Transactions or Locks:

    • Explanation: Another process might be holding a lock on the target table, preventing successful insertion.
    • Solutions:
      • Identify Conflicting Processes: Review Oracle database logs (e.g., alert_SID.log) to identify any long-running transactions that might be locking the table.
      • Terminate Transactions: (Carefully) Terminate the conflicting transactions if necessary, but only after ensuring data integrity won’t be compromised.
      • Use COMMIT or ROLLBACK: If your coworker’s code involves manual database interactions, ensure proper use of COMMIT and ROLLBACK statements to release locks after operations.
      • Schedule Jobs Off-Peak: If possible, schedule Bulk Insert tasks during off-peak hours when concurrent activity is likely lower.

  2. Transaction Isolation Levels:

    • Explanation: Inappropriate transaction isolation levels might cause locking issues.
    • Solutions:
      • Review Isolation Level Settings: Check the transaction isolation level used in the Oracle database connection.
      • Adjust Isolation Levels (if necessary): Consider adjusting the isolation level to READ COMMITTED or READ UNCOMMITTED if it’s currently set to a more restrictive level (like SERIALIZABLE). This can improve concurrency but might introduce potential data inconsistency issues, so proceed with caution.

  3. Bulk Insert Activity Configuration:

    • Explanation: Incorrect configuration in the UiPath Bulk Insert activity might lead to issues.
    • Solutions:
      • Verify Target Table: Ensure the activity’s TableName property points to the correct Oracle table.
      • Examine Column Mappings: Double-check the data type mappings between the DataTable and the target table columns. UiPath should handle most common conversions, but verify for edge cases.
      • Check Batch Size: Experiment with different batch sizes within the Bulk Insert activity. Smaller batch sizes might help avoid resource contention.

  4. Oracle Database Configuration:

    • Explanation: In rare instances, Oracle database configuration issues might contribute to the problem.
    • Solutions:
      • Consult Database Administrator (DBA): If none of the above solutions work, involve your database administrator (DBA) to investigate further. They might have insights into specific database settings that could be affecting resource availability or locking mechanisms.

By systematically addressing these potential causes and following the recommended solutions, your coworker should be able to resolve the ORA-00604 error and successfully perform Bulk Inserts into the Oracle database using UiPath.