Relational database schema normalization is NOT for :

Answer: The correct statement that is NOT a purpose of normalization is: "reducing the number of joins required to satisfy a query."

Why: Normalization is intended to organize a relational schema to remove redundancy, prevent anomalies, and make functional dependencies explicit. These goals often require decomposing a table into multiple related tables, which can increase the number of joins needed to reconstruct combined information at query time. Therefore, minimizing joins is not an objective of normalization; it is a trade-off between data integrity and query performance.

• Eliminating uncontrolled redundancy of data stored in the database: Normalization removes repeated storage of the same facts.

• Eliminating anomalies that could occur with inserts, updates, and deletes: Well-normalized schemas reduce these anomalies by separating unrelated data.

• Ensuring functional dependencies are enforced: Normal forms are defined using functional dependencies, and normalization enforces correct dependency structure.

Short example: A single table storing customer and order details may be decomposed into a customers table and an orders table to avoid repeating customer data for every order. This reduces redundancy and anomalies, but reconstructing customer+order views requires joining the two tables.