Mapping a primary key column with JPA and Hibernate is simple. You just need to add an attribute to your entity, make sure that its type and name match the database column, annotate it with @Column and you’re done.
Q. How can I map a composite primary key in hibernate?
A composite primary key is mapped using an Embeddable type in hibernate. We’ll first create an Embeddable type called EmployeeIdentity containing the employeeId and companyId fields, and then create the Employee entity which will embed the EmployeeIdentity type.
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Q. How use composite primary key in hibernate using annotations?
Using annotations
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