Quote:Learn SQL in Less Than 20 Hours is your essential guide to mastering SQL and database management. Designed for beginners, this book takes you step by step through the fundamentals and basic commands of SQL, with a practical approach that allows you to start applying what you learn from day one.

In the information age, data is the most valuable resource. Whether you're interested in programming, data analysis, or simply want to acquire a new skill, this book provides you with a solid foundation in SQL, an indispensable language for working with databases and extracting value from information.

This book is structured as a practical course divided into five days, combining theory and exercises that help you consolidate your knowledge. Each chapter is designed to simulate the time you would spend in a real training environment, ensuring effective and results-oriented learning.

What will you learn?
Day 1 (0-4 hours): Introduction to SQL and basic commands such as SELECT, WHERE, and GROUP BY.
Day 2 (4-8 hours): Subqueries and different types of JOINS.
Day 3 (8-12 hours): Data manipulation operations (DML) such as INSERT, UPDATE, and DELETE.
Day 4 (12-16 hours): Modifying table structures and views.
Day 5 (16-20 hours): Creating and managing indexes, sequences, synonyms, and roles.
At the end of the book, you will find an appendix with practical exercises to solidify your knowledge and become proficient in SQL. Additionally, you have access to a GitHub repository where exercises and code examples are regularly updated, ensuring you always have up-to-date material to practice with.

Why choose this book?
Practical approach: Learn SQL effectively through constant practice.
Clear structure: Follow a step-by-step journey that facilitates learning, ideal for beginners.
Versatility: Useful for students, IT professionals, data analysis experts, and anyone interested in programming.
Positive reviews: This book has helped many get started in the world of SQL and databases.