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

Discussion

Proper normalization eliminates duplicated data.

  • A.True
  • B.False

Answer: B

Correct answer: True

A normalized design stores each fact in one place, which is what makes update anomalies impossible: there is no second copy to fall out of step. Foreign key values are repeated, but they are the mechanism by which relations are linked rather than duplicated data, and they are maintained by referential integrity rather than by hand.

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

Post your comment

Please log in or register to post a comment.