SQL Optimization Patterns Transform slow database queries into lightning-fast operations through systematic optimization, proper indexing, and query plan analysis. When to Use This Skill - Debugging slow-running queries - Designing performant database schemas - Optimizing application response times - Reducing database load and costs - Improving scalability for growing datasets - Analyzing EXPLAIN query plans - Implementing efficient indexes - Resolving N+1 query problems Core Concepts 1. Query Execution Plans (EXPLAIN) Understanding EXPLAIN output is fundamental to optimization. PostgreSQL EX…