SQL Fundamentals: Querying and Managing Relational Databases

Relational databases power modern applications, making SQL an indispensable skill for anyone working with data. This text-based course guides you through core database concepts, essential query syntax, and practical management techniques from the ground up. You will start by mastering foundational database terminology and structure before moving on to practical query writing. By working through clear explanations and written exercises, you will gain the confidence to retrieve, filter, modify, and manage datasets efficiently. What you'll learn: - Understand core relational database concepts, tables, primary keys, and schema design - Write clean SQL queries using SELECT, WHERE, GROUP BY, and ORDER BY clauses - Combine multiple tables effectively with INNER, LEFT, and RIGHT JOIN operations - Perform data aggregation and filter grouped results using aggregate functions and HAVING - Utilize Common Table Expressions (CTEs) to write readable, modular queries - Modify database contents safely using INSERT, UPDATE, and DELETE statements - Apply basic indexing principles and best practices to write efficient, optimized queries The curriculum begins with essential definitions and relational structures, then steadily progresses into complex multi-table queries, dynamic transformations, and database management fundamentals. Designed specifically for complete beginners, no prior coding or database experience is required. Start reading today to unlock the power of data management.