Person 1 : Bank N, Bank 1 : Account N

@Entity
public class Person {

    @Id
    @Column(unique = true, nullable = false)
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

    private String name;

    @OneToMany(cascade = CascadeType.ALL)
    @JoinColumn(name = "person_id")
    private List<Bank> banks;
}

@Entity
public class Bank {

    @Id
    @Column(unique = true, nullable = false)
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

    private String name;

    @OneToMany(cascade = CascadeType.ALL)
    @JoinColumn(name = "bank_id")
    private List<Account> accounts;
}

@Entity
public class Account {

    @Id
    @Column(unique = true, nullable = false)
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long id;

    private String name;
}

select ....
select ....
select ....
select ....
select ....
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