Which of the following does not contain repeating groups,but has a primary key and possibly partial dependencies?
A) unnormalized data
B) first normal form (1NF)
C) second normal form (2NF)
D) third normal form (3NF)

Question

Which of the following does not contain repeating groups,but has a primary key and possibly partial dependencies?​
A) ​unnormalized data
B) ​first normal form (1NF)
C) ​second normal form (2NF)
D) ​third normal form (3NF)

Quizplus · Accepted Answer

First normal form (1NF) does not allow repeating groups, and it requires that each attribute in a table contains only atomic values. It also requires a primary key to uniquely identify each row and may have partial dependencies. The other options, unnormalized data, 2NF, and 3NF, all have repeating groups in some sense.

Which of the Following Does Not Contain Repeating Groups,but Has