Composite Primary Key Composite primary key is a combination of two or more columns in a table. So instead of a single column to be a primary key, more than one column or field is made to be a primary key to uniquely identify the rows in a given table. Let’s say you have created a table called user in your database…

In this example I am going to tell you how to map composite primary key to entity class in your JPA Hibernate entity class. Composite primary key is a combination of two or more columns made together as a primary key. Therefore the combination of column values will be as a unique instead of having a single column value as…