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When one transaction reads a changed record that has not been committed to the database a filthy read occurs.

  • A.
    True
  • B.False

Answer: B

Correct answer: False

The name is right in substance and wrong in wording: reading a changed record that has not been committed is a dirty read, not a filthy one. The term matters because it is one of the three anomalies the isolation levels are defined against, alongside nonrepeatable reads and phantom reads.

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