What to learn with hibernate?

Question

Java

I am learning to develop websites and work with a database in Java
While I am playing with parsers and working with a database I am learning
Hibernate, though I don’t know which technologies are already outdated and not used
For example, I make a selection using Criteria, and writing in the database, as I understand it, is not a criterion is able, on it I use hql requests
Question: what sense then with criteria if she is able only to do selections?
Is there something unique that is convenient for sampling, recording, deleting, etc. ? (JPA?)
And what else would you advise to learn in parallel with hibernate to raise the skill and get an easy start in Spring mvc?

Answer 1

Here, for example, I make a selection using Criteria, but as I understand it, I can’t write a criterion in the database, so I use hql queries

Hibernate uses session.save() and session.merge() to insert, no need to be smart with HQL. Examples .
The meaning of the criteria is in the selection (but it is more convenient for me to use JPQL / HQL).
If together with Spring, then I advise you to learn first of all JPA and the associated Spring Data JPA. For convenience, you can also pay attention to Spring Boot.