Hi @gangadhar ,
Database Design for Mere Mortals is the perfect introduction to relational database design for the novice and anyone needing a refresher. With his many years of real-world experience designing relational databases, Michael J. Hernandez, the author of the book, shows you how to analyze and improve existing databases, implement keys, define table relationships and business rules, and create data views. the advantage of this book is real-world example and easy to read.
This is an excellent book to learn database modeling and design from scratch. If you want, you can also combine this book with the SQL & Database Design by Kirill Eremenko on Udemy, which is also very affordable.
There are many other good books for Relational Database Design, please refer to the blog Top 5 Books to Learn SQL and Database Design for Programmers and DBAs - Best of Lot to get more introduction.
Best regards,
Cathy
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