These days, businesses and startups rely on well-designed databases to manage vast amounts of data. In domains like Healthcare, E-commerce, and Fintech/Banking, a solid database design ensures data in

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A beginner-friendly introduction to database system design covering core concepts and practical implementation. Topics include the components of a database system, types of databases (relational, NoSQL, cloud, etc.), the four stages of database design (requirements analysis, conceptual, logical, physical), and normalization through the first three normal forms. A hands-on section walks through designing a library database using PostgreSQL and pgAdmin 4, with SQL examples for creating tables with primary/foreign keys, inserting data, and querying with SELECT, WHERE, and JOIN.

An Introduction to Database System Design

The Role of Normalisation in Database Design