Learn Databases and SQL from Harvard University

Harvard University's CS50 SQL course provides a comprehensive introduction to relational databases and SQL. The 11-hour course covers querying, relating, designing, writing, viewing, optimizing, and scaling databases. Students learn CRUD operations, data normalization, table joins using primary and foreign keys, views, and indexes through hands-on assignments with real-world datasets. The curriculum progresses from SQLite basics to PostgreSQL and MySQL for scalability.