Spring Boot Data JPA — CRUD Application

Before building anything larger on JPA, the mapping between objects and tables has to be second nature.

Configured the persistence layer end to end and modelled the entities and repositories.

Developed a backend application implementing CRUD operations using Spring Data JPA, configuring database connectivity and JPA properties for persistent storage.

Created entity models and repository interfaces following Spring conventions, which made the ORM behaviour — lazy loading, relationship mapping, generated queries — concrete rather than theoretical.