hibernate - JPA Id should it be Long?

Question

I have a user table with columns such as username and password? the username is unique and can be a primary key, but most examples I have seen on JPA keep Long id as the primary key. Is there any advantage of doing that or should I keep username as the primary key?

question from:https://stackoverflow.com/questions/65950190/jpa-id-should-it-be-long

Answer 1

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