Q:

Which of the following occurs when a transaction rereads data it has previously read and finds modification or deletions caused by a committed transaction

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Which of the following occurs when a transaction rereads data it has previously read and finds modification or deletions caused by a committed transaction?


  1. Nonrepeatable read
  2. Phantom read
  3. Dirty read
  4. Consistent read

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(a).Nonrepeatable read

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