Welcome to Advanced SQL Query Optimization 🔥

You just made the best investment in your backend engineering career.

📚 6 Chapters, 14 Lessons covering the full optimization stack:

• How databases actually execute your queries (execution plans, optimizer internals)

• Indexing strategies that survive production traffic (B-trees, partial indexes, covering indexes)

• JOIN optimization and query refactoring (algorithms, correlated subquery elimination, CTEs)

• Window functions and advanced patterns (analytics queries, recursive CTEs, hierarchical data)

• Production monitoring and performance tuning (pgstatstatements, connection pooling, caching)

• Real-world case studies with a full capstone optimization walkthrough

Everything is taught from a Spring Boot perspective — Hibernate gotchas, HikariCP tuning, Spring Cache integration, JPA anti-patterns, and production-ready configurations.

💬 Community Chat — Ask questions, share wins, post your execution plans for feedback.

🏆 Certificate — Complete all lessons to earn your completion certificate.

Start with Chapter 1 and work through sequentially. Each lesson builds on the previous one. Let's make your queries fast. 🚀

Most backend developers write SQL that works. Few write SQL that performs.

If you've ever stared at a 5-second query wondering why it's doing a sequential scan on 2 million rows, or debugged an N+1 problem buried three layers deep in Hibernate — this course is for you.

Advanced SQL Query Optimization is a 14-lesson deep dive into:

• Reading execution plans like a senior DBA

• Choosing the right index for every access pattern

• Eliminating correlated subqueries and N+1 traps

• Window functions that replace ugly self-joins

• Connection pooling, caching, and production monitoring

Everything taught from a Spring Boot / Hibernate perspective with real code, real configs, and real case studies. The capstone walks you through taking a 12-second dashboard query down to 2ms — step by step.

$233/month with a 1-day free trial. Start the trial, go through Chapter 1, and decide if it's worth it.

Most backend developers write SQL that works. Few write SQL that performs.

If you've ever stared at a 5-second query wondering why it's doing a sequential scan on 2 million rows, or debugged an N+1 problem buried three layers deep in Hibernate — this course is for you.

Advanced SQL Query Optimization is a 14-lesson deep dive into:

• Reading execution plans like a senior DBA

• Choosing the right index for every access pattern

• Eliminating correlated subqueries and N+1 traps

• Window functions that replace ugly self-joins

• Connection pooling, caching, and production monitoring

Everything taught from a Spring Boot / Hibernate perspective with real code, real configs, and real case studies.

The capstone walks you through taking a 12-second dashboard query down to 2ms — step by step.

$233/month with a 1-day free trial. Start the trial, go through Chapter 1, and decide if it's worth it. If you can save one production incident, it's already paid for itself.