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A durable transaction is one in which all committed changes are permanent.

  • A.True
  • B.

    False

Answer: A

Correct answer: True

Durability is the last of the four ACID properties: once a transaction has committed, its changes survive whatever happens afterwards, including a crash. It is achieved by writing the change to the transaction log before acknowledging the commit, so that the change can be reapplied during recovery even if it never reached the datafiles.

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