SQL Foundations: Database Basics and Practical Query Exercises

In today's data-driven world, the ability to communicate with databases is an invaluable skill. Whether you want to analyze business trends, support software development, or start a career in data, learning SQL is your first essential step. This text-based course guides you from absolute beginner to confidently writing your own database queries. You will start with core database concepts before moving on to retrieving, filtering, and joining data from multiple tables. What you'll learn: - Understand core database concepts, tables, schemas, and relational models - Retrieve and filter data using SELECT, WHERE, and ORDER BY clauses - Aggregate and group data with GROUP BY and HAVING to extract meaningful insights - Combine data from multiple tables using INNER, LEFT, and RIGHT JOINs - Write subqueries and Common Table Expressions (CTEs) to handle complex data retrieval - Apply modern database best practices, including basic indexing and query performance concepts The course begins with essential database definitions and terminology, ensuring you have a solid foundation. You will then progress through structured text lessons and practical querying scenarios that simulate real-world business tasks. Designed entirely for beginners, this course requires no prior programming or database experience. Start reading today and build a practical, lasting foundation in SQL.