Ultimate SQL for Relational Database Design

Master SQL Database Design and Querying with Precision

Key Features
● Get a free one-month digital subscription to www.avaskillshelf.com
● Design scalable entity-relationship models with confidence.
● Build reusable SQL reports to answer real business questions.
● Master SQL, the core language of modern analytics.

Book Description
Ultimate SQL for Relational Database Design guides readers step by step from understanding why structured data matters to building and querying fully functional relational databases. The book begins with the foundations of data organization and the relational model, establishing how tables, keys, and relationships support accurate and scalable systems.

The book then walks through Normalization from Unstructured Data (UNF) to Third Normal Form (3NF), showing how to eliminate redundancy, enforce data integrity, and design databases optimized for performance. You transition into hands-on SQL development—using Data Definition Language (DDL) to create and modify schemas, followed by Data Manipulation Language (DML) to retrieve, insert, update, and delete data effectively.

The journey concludes with intermediate SQL techniques—including joins, grouping, filtering, and built-in functions—before integrating all concepts into a comprehensive case study so that the readers can confidently design, implement, and query relational databases from scratch.

What you will learn
● Apply relational model principles to real database designs
● Design complete entity-relationship diagrams from requirements
● Transform unstructured data into normalized 3NF schemas
● Build and modify databases using SQL DDL commands
● Construct advanced queries using joins, aggregates, and built-in functions
● Develop SQL queries to solve business problems

Who is This Book For?
This book is tailored for aspiring Data Analysts, Business Analysts, Junior Data Engineers, SQL Developers, and BI professionals seeking a strong foundation in relational database design and SQL. It is also suitable for students in Computer Science or Information Systems, and career switchers entering data-focused roles. No prior database experience is required, as only basic computer literacy with spreadsheets is enough!

1. Organize or Die: Learning from Data
2. Brief Overview of Relational Model
3. Data Modeling and Normalization
4. Learning About Normalization
5. Beginning with SQL
6. Intermediate SQL Part 1
7. Intermediate SQL Part 2
8. Putting it All Together
Index

Gregory Thomas Hay holds a master’s degree in Information Management from the University of Washington, with various technical certifications accumulated beginning in 1992. In a career spanning more than 26 years, Gregory has experience as an employee or contractor at several prominent companies in the greater Seattle metropolitan region, including Microsoft, Walt Disney Internet Group, and the Bill and Melinda Gates Foundation.

About the Technical Reviewer
Umar Adam Ibrahim has a Ph.D. in Artificial Intelligence (AI) and has extensive experience in software development, academia, and AI research. He began his career as a software developer, building robust and scalable systems before transitioning into academia, where he taught a range of computing courses, including machine learning, data science, and programming. In addition to teaching, Umar has been deeply involved in student innovation

and entrepreneurship, serving as a startup advisor and mentor for emerging Technologists.

His research focuses on the application of Artificial Intelligence in education, healthcare, climate, and energy, with a passion for using intelligent systems to drive social and economic impact. Umar is dedicated to advancing the responsible adoption of AI technologies and empowering the next generation of innovators

through hands-on learning and applied research.

Jacqueline Hsu is a technical reviewer currently working at a FinTech company as a data scientist. She earned her bachelor’s degree from the University of Washington and her master’s degree from Carnegie Mellon University. Jacqueline’s SQL journey began in a class with Greg, and she has since built on that foundation, applying and expanding her expertise across a range of professional roles.