Answer-Which of the following correctly describes the second normal form (2NF) in database normalization?

Question

Accepted Answer

A table is in Second Normal Form 2NF if it is in First Normal Form 1NF and all non-key attributes are fully functionally dependent on the entire primary key, not just part of it. This eliminates partial dependencies, which occur when a non-key attribute depends on only a part of a composite primary key.   Why Other Options Are Incorrect    The table contains no duplicate rows This is a general requirement for any relational database, not specific to 2NF.   Every determinant is a candidate key This describes Boyce-Codd Normal Form BCNF , a stricter form of 3NF.   The table is free from transitive dependency This is achieved in Third Normal Form 3NF , not 2NF.   All attributes depend on the primary key This defines 1NF but does not address partial dependencies, a key focus of 2NF.

Which of the following correctly describes the second normal form (2N

Detailed Solution

More Basics of Computers Questions

Hey! Ask a query

Please Register/Login