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by Kaushal Mehta (Author)
SQL Demystified: A Beginner's Roadmap to Data Retrieval and Management is your definitive starting point to master one of the most essential skills in today's digital age-working with data. Databases drive everything around us-from retail systems and financial applications to healthcare records and social media platforms. And at the heart of all these systems lies SQL.
This book is crafted for those with little or no background in databases. Through a carefully structured curriculum, it guides readers from fundamental concepts like tables, rows, and keys to powerful querying techniques such as joins, subqueries, and stored procedures.
You'll explore:
- Relational vs. Non-relational databases
- SQL Server Management Studio (SSMS) walkthrough
- Writing SELECT queries with filters, sorting, and pattern matching
- Applying aggregation and grouping techniques
- Combining data using different types of joins
- Writing reusable and secure code using views and stored procedures
- Managing transactions, concurrency, and data integrity
- Performing real-life business tasks like identifying high-value customers and cleaning messy data
Every chapter features real-world analogies (like TechRetail Corp and GlobalMart), helping learners connect abstract SQL concepts to practical outcomes. Interactive quizzes, unsolved problems, and mini-projects make this book classroom-friendly and self-study ready.
