How does GenerationType.AUTO hibernate work in Oracle?

Question

Using oracle / JPA Hibernate. I imported a schema that matters below the students table below. Here is an example

100
85
80
70
1

I have the code below:

@Id
@GeneratedValue(strategy = GenerationType.AUTO)
long id;

Now that a new student is inserted, he does not insert the maximum value ie 101 (max + 1). But inserting some values ​​available between like 90. I'm not sure how this is possible?

Does Hibernate create the internal structure of some database sequence and use it using the last created value plus 1

Answer 1

For the oracle, yes, it creates a sequence (probably called hibernate_sequence).

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