Multiple choice technology

When nzload operation fails in between,

  1. Already loaded records are visible to the user

  2. Already loaded records are logically deleted

  3. Already loaded records are Physically deleted

  4. None
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

nzload is transactional - if it fails mid-operation, all partially loaded records are rolled back to maintain data integrity. This rollback is typically implemented by logically deleting the records (marking them as deleted). They remain on disk temporarily but are invisible to users and will be cleaned up by maintenance processes.

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