SQL and MySQL: Database Foundations for Data Science

Data is the foundation of modern decision-making, but to analyze it, you must first know how to retrieve it. This text-only course guides you through SQL and MySQL, the industry-standard tools for querying and managing relational databases. You will transition from a complete beginner to a confident practitioner capable of writing queries, filtering datasets, and preparing clean data for analytical pipelines. What you'll learn: 1. Understand foundational database concepts, relational schemas, and SQL syntax. 2. Write efficient SELECT queries to retrieve, filter, and sort data from MySQL databases. 3. Aggregate and group data to extract meaningful business metrics and insights. 4. Join multiple tables using various join types to consolidate information. 5. Work with modern database features including JSON data types and window functions. 6. Optimize query performance with basic indexing and execution plan analysis. You will start with core database theory and basic syntax before moving on to multi-table operations, aggregations, and modern MySQL features. This course is designed for aspiring data analysts, data scientists, and developers who are new to databases. No prior programming or SQL experience is required. Start reading today to build a strong foundation in database query mechanics.