#05 OneToMany Entity Relationship JPA | JAVA PERSISTENCE API JPA | Tutorial | Java | Jakarta

✅ JPA Entity Relationship, One To Many Relationship
The relations are more effective between tables in the database. The entity classes are treated as relational tables, the relationships between Entity classes are as follows:

- @ManyToOne Relation
- @OneToMany Relation
- @OneToOne Relation
- @ManyToMany Relation

In this video, we are going to learn the One to Many Relationship in Java Persistence API (JPA).
In the OneToMany, each row of one entity is referenced to many child records in other entities. In a one-to-many relationship between Table A and Table B, each row in Table A is linked to 0, 1, or many rows in Table B

We are going to use the Student and School entity defined in the previous videos.
During this video, we are going to use the H2 database for database operations.

▶GitHub Repository: https://github.com/GiuseppeScaramuzzino/jpatutorial

? Blogs to follow to learn more about JPA:
▶ Baeldung: https://www.baeldung.com/
▶Javin Paul: https://javarevisited.blogspot.com/ | https://medium.com/@javinpaul
▶Vlad Mihalcea: https://vladmihalcea.com/

OneToMany| EntityManager | EntityRelationship | Jakarta | JPA | Java

0:00 Introduction
0:09 OneToMany Relationship
0:45 Implement Tutor
3:00 Implement TutorRepository
6:10 Implement the OneToMany Relationship
7:30 Create the addStudent method
8:00 Create the removeStudent method

❤️Let's start and please enjoy the video.

Thanks for watching!

✍️ If you have any questions or doubts don’t hesitate to write them inside the comments section below.

●▬▬▬ LINKS ▬▬▬●

▶GitHub Repository: https://github.com/GiuseppeScaramuzzino/jpatutorial

? Blogs to follow to learn more about JPA:
▶ Baeldung: https://www.baeldung.com/
▶Javin Paul: https://javarevisited.blogspot.com/ | https://medium.com/@javinpaul
▶Vlad Mihalcea: https://vladmihalcea.com/

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