Which normal form addresses partial dependencies, i.e., non-prime attributes dependent on part of a composite primary key? MCQ with Answer and Explanation

Question
Which normal form addresses partial dependencies, i.e., non-prime attributes dependent on part of a composite primary key?
A. 3NF
B. BCNF
C. 1NF
D. 2NF
Answer: Option D
Solution (By JKExamLibrary)
Second Normal Form (2NF) eliminates partial dependencies by ensuring all non-key attributes are fully functionally dependent on the entire primary key.
This question belongs to: Computer Database Management System (DBMS)

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Practice More Database Management System (DBMS) Questions

Question #1
Which clause is used in SQL queries to filter rows and retrieve only those records that satisfy a specific condition?
A. GROUP BY
B. ORDER BY
C. HAVING
D. WHERE
Discuss

Correct Answer: Option D

Explanation:
The WHERE clause is used to filter records based on a specified condition before any grouping takes place.
This question belongs to: Computer Database Management System (DBMS)
Question #2
Which rule state that 'no component of a primary key can accept a NULL value'?
A. Referential Integrity Rule
B. Entity Integrity Rule
C. Security Integrity Rule
D. Domain Constraint Rule
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Correct Answer: Option B

Explanation:
The Entity Integrity Rule states that a primary key column cannot contain NULL values, ensuring each row can be explicitly identified.
This question belongs to: Computer Database Management System (DBMS)
Question #3
Which model represents data in the form of tables?
A. Network model
B. Entity-Relationship model only
C. Relational model
D. Hierarchical model
Discuss

Correct Answer: Option C

Explanation:
The relational model uses tables (relations) to represent data and relationships.
This question belongs to: Computer Database Management System (DBMS)
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