Schema Design

Schema design is the foundation of every data-driven application. A well-designed schema makes applications faster, easier to maintain, and more scalable. A poorly designed schema creates technical debt that compounds over years. This course teaches you the principles, patterns, and practices of professional schema design across relational, document, and hybrid databases.

• • Normalization theory: 1NF, 2NF, 3NF, and when to denormalize
• • Indexing strategies for different query patterns
• • Foreign keys, constraints, and data integrity with visual relationship diagrams
• • Query optimization and execution planning
• • Schema design patterns for relational, document, and hybrid databases
• • Migrating schemas without downtime

12 deep-dive theory modules organized into 3 progressive checkpoints — from schema foundations through production-ready schema design. Each module includes architectural explanations, visual diagrams using HTML tables, practical examples across database types, and comprehensive quizzes.