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Is the following student table in 3NF (Third Normal Form)? Justify your answer.

Computer Science

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The table is in 3NF (Third Normal Form).

Here's the justification:

  1. First Normal Form (1NF): The table is in 1NF because all attributes (StudNo, StudName, Gender, DateOfBirth) contain atomic (single) values, and there are no repeating groups. Each row is unique, with StudNo serving as the primary key.

  2. Second Normal Form (2NF): The table is in 2NF because it is already in 1NF, and all non-key attributes (StudName, Gender, DateOfBirth) are fully functionally dependent on the primary key (StudNo). Since the primary key is a single attribute (StudNo), there cannot be any partial dependencies.

  3. Third Normal Form (3NF): The table is in 3NF because it is in 2NF, and there are no transitive dependencies. This means no non-key attribute is dependent on another non-key attribute. All non-key attributes (StudName, Gender, DateOfBirth) are directly dependent only on the primary key (StudNo).

Therefore, the table satisfies all conditions for 3NF.

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