JPA vs Hibernate vs JDBC: What Each One Actually Does | Visually Explained

Your Spring Boot app logs "Hibernate", but you never added it. So where did it come from? One save() call passes through Spring Data JPA, JPA, Hibernate, JDBC and the PostgreSQL driver. This video shows what each piece does, why it exists, and how they fit together. Follow an order from a repository's save() call to PostgreSQL, then back into a Java object. See why object-relational mapping (ORM) exists, how a standard differs from real code, and what changes when you swap PostgreSQL for MySQL or Hibernate for EclipseLink. For Java developers who want to understand the stack behind their code and explain the difference between JPA and Hibernate with confidence. CHAPTERS 00:00 Your code works. What makes it work? 00:58 Standards and implementations 01:25 JDBC and database drivers 02:39 Why ORM exists 04:07 Why Hibernate and JPA were created 05:26 What JPA actually provides 06:12 What Hibernate does 07:34 Where Spring Data JPA fits 08:47 From save() to the database 10:17 Swapping databases and providers 11:01 The whole stack, connected OFFICIAL RESOURCES Jakarta Persistence (JPA) https://jakarta.ee/specifications/per... Hibernate ORM https://hibernate.org/orm/ How Spring Data JPA saves entities https://docs.spring.io/spring-data/jp... JDBC API https://docs.oracle.com/en/java/javas... PostgreSQL JDBC driver https://jdbc.postgresql.org/ Nexus dots — software concepts, visually explained. Subscribe for more explanations that help you understand what your code is doing. PHOTO CREDITS Connector photos are cropped and composited into the animation. All three are licensed under CC BY 2.0: https://creativecommons.org/licenses/... "Apple 30-pin Dock Cable v. Lightning Cable" — unten44 https://commons.wikimedia.org/wiki/Fi... "Micro USB vs micro HDMI 01" — isinoid https://commons.wikimedia.org/wiki/Fi... "USB Type-C Cable - iPad USB-C Charger" — Tony Webster https://commons.wikimedia.org/wiki/Fi... Map data: Natural Earth, public domain. https://www.naturalearthdata.com/ #JPA #Hibernate #SpringBoot