Hibernate is generating auto increment alternating id for tables

Question

My environment : Hibernate 5, Java 8, Phpmyadmin in WAMP

Problem: Hibernate creates auto increment id within a table, but the

Answer 1

You haven't specified any generator for any of your entities. So Hibernate uses the default one for your database, which consists in using single sequence: hibernate_sequence, to generate the IDs of the entities.

Annotate your Student id field with something like

@SequenceGenerator(name = "studentGenerator", sequenceName = "STUDENT_SEQUENCE", allocationSize = 1)
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "studentGenerator")

and it will use a dedicated sequence, STUDENT_SEQUENCE, for the Student entity. Do the same (with a different generator and sequence name) for the other entities.