Java Spring Boot JPA | Hibernate | ManyToOne OneToMany | 2021

In this tutorial we cover the Java Persistence API using Hibernate with Spring Boot Data JPA, focusing on the ManyToOne OneToMany relationships for both unidirectional and bidirectional relationships.

The Java Persistence API (JPA) is a Java specification for accessing, persisting, and managing data between Java objects / classes and a relational database.
JPA is now considered the standard industry approach for Object to Relational Mapping (ORM) in the Java Industry.
JPA is specification, and requires an implementation.
JPA also defines a runtime EntityManager API for processing queries and transaction on the objects against the database.

https://docs.oracle.com/javaee/6/api/...
https://docs.oracle.com/javaee/6/api/...

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