SQL Fundamentals and Relational Data Modeling

Structured data powers modern applications and analytics engines across every industry. Understanding how relational databases store information and how to retrieve it using SQL is a core technical skill. This written course guides you step-by-step from foundational database terminology to writing practical SQL queries and designing reliable database schemas. What you'll learn: Understand core relational database concepts, primary keys, foreign keys, and table relationships. Write clear SQL queries to retrieve, filter, group, and join data from multiple tables. Design robust database models using normalization techniques and entity relationship principles. Apply modern query tools such as Common Table Expressions (CTEs) and window functions. Practice maintaining data integrity and understanding basic indexing for performance. The course begins with essential database definitions and architecture before guiding you through practical querying syntax and schema design logic. This text-based program is created for complete beginners, with no previous programming or database background required. Begin your path to mastering SQL and relational data modeling today.