In which normal form, partial dependency needs to be removed?
Correct answer: B. 2NF (Second Normal Form)
- A. 1NF (First Normal Form)
- B. 2NF (Second Normal Form)
- C. 3NF (Third Normal Form)
- D. BCNF (Boyce-Codd Normal Form)
Explanation
Partial dependency occurs in a relational database table when a non-key attribute is dependent on only a part of the composite primary key, rather than the entire key. This can lead to data inconsistencies when updating or deleting data. Second Normal Form (2NF) ensures that all non-key attributes are fully dependent on the entire primary key, eliminating partial dependencies
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