Introduction to the Relational Model and Relational Algebra

Understanding the mathematical foundation of databases is key to designing efficient, reliable, and scalable storage systems. This text-based course guides you from the core concepts of data modeling to the precise logic that powers modern database engines. By working through clear written explanations and practical design scenarios, you will learn how to structure data effectively, map conceptual designs to relational tables, and write relational algebra queries to retrieve information. What you'll learn: Understand the core concepts of the relational model, including tables, attributes, keys, and integrity constraints; Convert Entity-Relationship (ER) diagrams into clean, relational schemas; Master fundamental relational algebra operations such as selection, projection, join, union, and set difference; Apply database normalization principles to eliminate redundancy and design anomalies; Translate complex data retrieval requests into precise relational algebra expressions; Explore how relational algebra concepts form the logical foundation of modern SQL query execution. You will start with foundational database terminology and conceptual modeling before moving step-by-step through schema mapping and formal algebraic operations. Each section combines theoretical principles with detailed, written walkthroughs of realistic database scenarios. This course is designed for beginner computer science students, aspiring database administrators, and software developers who want to understand the theoretical core of databases without any prior prerequisites. Start building a stronger foundation in database theory today.