java-tutorials/persistence-modules/spring-data-jpa-query-4/README.md

### Relevant Articles
- [Querying JSONB Columns Using Spring Data JPA](https://www.baeldung.com/spring-data-jpa-querying-jsonb-columns)
- [Implement Update-Or-Insert in Spring Data JPA](https://www.baeldung.com/spring-data-jpa-update-or-insert)