What is phantom read in the context of transaction isolation levels?

2025

Answer: A. A transaction reads a set of rows that were inserted by another transaction after it started

1. A.

   A transaction reads a set of rows that were inserted by another transaction after it started

2. B.

   A transaction reads data that was committed by another transaction

3. C.

   A transaction reads data that was changed by another transaction but not yet committed

4. D.

   None of the above

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