Spring JPA repository: prevent update on save

Question

My user DB table looks like this:

CREATE TABLE user (
    username VARCHAR(32) PRIMARY KEY,
    first_name VARCHAR(256) NOT NULL,
    last_name          


        

Answer 1

Instead of this.userRepository.save(user) , can you try this.userRepository.saveAndFlush(user)

My best guess is, it will make your entity detached and as per the JPA documentation, it states an EntityExistsException is thrown by the persist method when the object passed in is a detached entity. Or any other PersistenceException when the persistence context is flushed or the transaction is committed.