Xiaolin Talks Programming

Jul 14, 2026 · Backend Development

ORM Performance Tuning in Spring Boot: Fixing N+1 Queries, Dynamic SQL Optimization & Fetch Strategies

This guide covers root-cause analysis of N+1 queries in JPA and MyBatis, APM-based detection methods, fetch strategy optimization using EntityGraph and JOIN FETCH, MyBatis resultMap refactoring, lazy-loading boundaries, second-level cache trade-offs, keyset pagination, and production-grade SQL interceptors with code review checklists.