suresh Understanding the Difference Between Merge and Update in Hibernate
When working with Hibernate, it is crucial to differentiate between the merge and update operations.
Focus Keyword: Hibernate
Merge in Hibernate: The merge operation in Hibernate is used to associate a detached object with a persistence context. It will copy the state of the detached object onto a managed entity with the same identifier. If no existing entity with the same identifier is found, a new entity will be created.
Update in Hibernate: The update operation in Hibernate is used to update the state of a managed entity. It will throw an exception if the entity is not in the persistent state. The update operation is only applicable to entities that are already associated with the persistence context.
Overall, understanding the differences between merge and update in Hibernate is essential for proper data management and manipulation within your application.
Please login or Register to submit your answer