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      Question

      A transaction that reads a value then later sees a

      different value because another transaction updated and committed in between experiences which anomaly?
      A Dirty read Correct Answer Incorrect Answer
      B Lost update Correct Answer Incorrect Answer
      C Non-repeatable read Correct Answer Incorrect Answer
      D Phantom read Correct Answer Incorrect Answer
      E Write skew Correct Answer Incorrect Answer

      Solution

      Non-repeatable read: same query returns different results within a transaction due to committed updates by others.

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