Welcome to the heart of database design! This part takes you beyond the basics and into the art and science of creating robust, efficient, and scalable databases. Here, you’ll learn how to structure data not just to store it but also to enable powerful, reliable applications.
Chapter 4 begins with entities and attributes—the building blocks of any database. You’ll discover how to map real-world objects and concepts to entities and attributes and how to select the right data types.
Chapter 5 focuses on relationships, demonstrating how to create meaningful connections among entities. By the end of this chapter, you’ll know how to translate real-world relationships into a coherent, well-structured database.
Chapter 6 introduces normalization and implementation. You’ll learn how to refine and strengthen your database designs through normalization and how to translate your designs to SQL, bridging the gap between theory and practice.
Chapter 7 delves into security and optimization. This chapter equips you with strategies to safeguard sensitive data and enhance database performance with techniques such as indexing and denormalization.
By the end of this part, you’ll have the expertise to design databases that meet the demands of real-world applications. Whether you’re building a small project or tackling a complex enterprise system, this section will prepare you to handle the challenges of modern database design with confidence and precision.