What is one of the benefits of using a relational database?

One of the benefits of using a relational database is that it ensures better data integrity. Relational databases organize data into tables with defined relationships, which helps maintain consistency and accuracy across the dataset. This structure allows for constraints, such as primary keys and foreign keys, to be enforced, ensuring that entries in the database follow certain rules and relationships. For example, primary keys uniquely identify records in a table, preventing duplicate entries, while foreign keys enforce valid relationships between related records in different tables. This enforcement of rules contributes to the overall integrity of the data, reducing the likelihood of errors and inconsistencies, which is crucial for making reliable data-driven decisions.

In contrast to this, data redundancy, the need for extensive indexing, and the elimination of queries do not align with the foundational principles and benefits of relational database systems. Redundancy typically goes against the goal of relational databases, which strive for normalization to minimize duplicate data. Indexing is important for optimizing query performance and is often necessary in relational databases to enable efficient data retrieval. Queries themselves are fundamental to interacting with relational databases, allowing users to extract and manipulate data as needed.