Machine-translated by Google. Questions are authored in English.
Top

Discussion

The transaction log contains a copy of every database record (or page) after it has changed. These records are called before images.

  • A.
    True
  • B.False

Answer: B

Correct answer: False

A record of a page after it has changed is an after image; a before image is the copy taken beforehand. Both are kept, and each has its own use in recovery: after images are applied to roll a transaction forward, before images to roll it back.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.