Which normal form requires that a table is in 1NF and all non-key attributes are

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Question: Which normal form requires that a table is in 1NF and all non-key attributes are fully functionally dependent on the primary key?

Options:

Correct Answer: Second Normal Form (2NF)

Solution:

Second Normal Form (2NF) requires that all non-key attributes are fully functionally dependent on the primary key.

Which normal form requires that a table is in 1NF and all non-key attributes are fully functionally dependent on the primary key?

Which normal form requires that a table is in 1NF and all non-key attributes are fully functionally dependent on the primary key?

Correct Answer: Second Normal Form (2NF)

Step 1: Understand what a normal form is in database design. It is a way to organize data to reduce redundancy and improve data integrity.
Step 2: Know that the First Normal Form (1NF) requires that all entries in a table are atomic, meaning each entry must contain indivisible values.
Step 3: Learn that the Second Normal Form (2NF) builds on 1NF. It requires that the table is already in 1NF.
Step 4: Understand that 2NF also requires that all non-key attributes (columns that are not part of the primary key) must depend on the entire primary key, not just part of it.
Step 5: Conclude that the normal form that requires a table to be in 1NF and ensures all non-key attributes are fully functionally dependent on the primary key is called Second Normal Form (2NF).

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