You check `EXPLAIN` during code review and find no slow queries, yet in production, hundreds of SQL statements are being executed. This is the N+1 problem. Even if your index design is correct, ...
A full-stack e-commerce web application built using Spring Boot.
A production-style e-commerce REST API built with Spring Boot, featuring JWT-based authentication, role-based authorization, and a complete shopping flow from product catalog to order placement.
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