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About the Book
Mastering Business Data with SQL is a comprehensive, hands-on guide for business analysts, data professionals, and technical decision-makers who want to unlock the full potential of SQL Server 2025. Whether you're working in analytics, compliance, or software development, this book teaches you how to query, model, secure, and report on data in real-world business environments.
Covering everything from the basics of SELECT and filtering queries to advanced multi-tenant architecture, window functions, and GDPR compliance, the book combines clear explanations with practical exercises using the latest SQL Server 2025 features and tools like SSMS 21.x and Visual Studio Code.
You’ll learn how to:
- Retrieve and manipulate data using core SQL skills
- Design normalized data models and enforce relational integrity
- Use views, aggregates, joins, and window functions for powerful analytics
- Architect databases for SaaS and multi-tenant systems
- Apply row-level security, data masking, and encryption for access control and privacy
- Comply with GDPR through techniques like pseudonymization, erasure, and audit trails
- Integrate SQL Server with Excel and Power BI for dynamic reporting
Each chapter includes structured exercises with step-by-step instructions and realistic datasets, making the book ideal for self-paced learning or classroom use. Whether you're preparing for enterprise projects or sharpening your SQL skills for business decision-making, this book equips you with the knowledge and tools to manage business data securely and effectively.
About the Author
Agus Kurniawan's journey in the field of technology, spanning from 2001, is a remarkable blend of deep technical expertise and a fervent passion for sharing knowledge. As a seasoned professional, Agus has carved a niche in diverse technological domains, including software development, IoT (Internet of Things), Machine Learning, IT infrastructure, and DevOps. His experiences are not just limited to developing cutting-edge solutions but also extend to shaping the future of upcoming technologists through training and workshops.
Agus's career is marked by significant contributions to both technological innovation and community development. His recognition as a Microsoft Most Valuable Professional (MVP) from 2004 to 2022 underlines his proficiency in Microsoft technologies and his dedication to educating others. Agus has been at the forefront of delivering various training sessions and workshops, sharing his insights and helping others grow in the ever-evolving tech industry.