In a multi-user COBOL application, two users are attempting to update the same record in a file simultaneously. How can you prevent conflicts and ensure that only one user can update the record at a time?
- Apply transaction rollback on conflicts
- Enable file versioning
- Implement record-level locking
- Use a semaphore mechanism
To prevent conflicts when multiple users are updating the same record simultaneously, implementing record-level locking is crucial. This ensures that only one user can update the record at a time, avoiding conflicts and maintaining data consistency.
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