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JPA / Hibernate Composite Primary Key Example with Spring Boot | RAJASEKHAR REDDY

In this video, You’ll learn how to map a composite primary key in Hibernate using JPA’s @Embeddable and @EmbeddedId annotations.

Let’s say that We have an application that manages Employees of various companies. Every employee has a unique employeeId within his company. But the same employeeId can be present in other companies as well, So we can not uniquely identity an employee just by his employeeId.


To identify an employee uniquely, we need to know his employeeId and companyId both. Check out the following Employees table that contains a composite primary key which includes both the employeeId and companyId columns

Let’s create a project from scratch and learn how to map such composite primary key using JPA and Hibernate.

Congratulations guys! In this video, you learned how to implement a composite primary key in hibernate using @Embeddable and @EmbeddedId annotations.

source code:-https://github.com/rajasekharreddybus...
#@EmbeddedId #compositeprimarykey
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