Database Normalization Concepts Quiz

To practice identifying and correcting anomalies in unnormalized relations

Normalize the unnormalized relation to 3NF

A written report

To visualize the relationships between entities in the database

07/11/2023

The anomalies in the unnormalized relation include insertion anomalies, deletion anomalies, and update anomalies.

• First Normal Form (1NF): This form ensures that each column in a table contains only atomic values and there are no repeating groups.- Second Normal Form (2NF): This form eliminates partial dependencies by ensuring that each non-key attribute is fully dependent on the primary key.- Third Normal Form (3NF): This form eliminates transitive dependencies by ensuring that no non-key attribute is dependent on another non-key attribute.

The purpose of normalizing relations to 3NF is to eliminate anomalies and improve the efficiency and integrity of the database.

The main task in normalizing the unnormalized relation to 3NF is to identify and correct the anomalies by decomposing the relation into multiple smaller relations.

Creating an entity-relationship diagram (ERD) is important for the normalized database as it provides a graphical representation of the entities, their attributes, and the relationships between them, which helps in understanding the structure and design of the database.