@Id
@GeneratedValue(strategy = GenerationType.IDENTITY)
private Long id;https://stackoverflow.com/questions/49813666/table-dbname-hibernate-sequence-doesnt-exist
IDENTITY를 안달아서 생기는 문제
티스토리로 이사했습니다! https://imsfromseoul.tistory.com/ + https://camel-man-ims.tistory.com/