SQL & PostgreSQL Handbook for Developers, DBAs & Data Engineers: Mastering Modern Data Workflows, Performance Optimization,

Why do some developers effortlessly design lightning-fast, scalable databases while others constantly struggle with slow queries and performance bottlenecks?
What separates the ones who truly understand data from those who only use it?

This isn’t another SQL manual — it’s a deep conversation with how data really works.

Julius M. Vanover takes you beyond syntax and commands into the mindset of a modern data expert. You’ll learn not just what to do, but why it works — and how to think like a developer, DBA, and data engineer all at once.

Inside, you’ll uncover how to:

Design scalable, efficient database architectures built for real-world demands.

Write queries that are both readable and optimized for performance.

Master PostgreSQL’s modern capabilities for analytics, pipelines, and distributed data systems.

Diagnose and solve performance issues by understanding what happens beneath the surface.


Ask yourself:
Do you really know what your queries do when you hit “Execute”?
Can your database scale when your data doubles or triples?
Are you building systems that can handle tomorrow’s workloads today?

This handbook challenges you to move from using databases to mastering them. It transforms the way you think about structure, performance, and scalability — giving you the tools to build systems that endure.

Don’t just learn SQL. Understand it.
Don’t just use PostgreSQL. Command it.

Take control of your data future — start mastering the modern data world today with the SQL & PostgreSQL Handbook.