In what ways have you interacted with databases from Java code? JDBC, JPA, Hibernate?

In Java, different approaches are used for interacting with databases:

• JDBC (Java Database Connectivity) — a low-level API for working with databases through SQL queries. It allows executing queries directly, managing connections, transactions.

• JPA (Java Persistence API) — a standard specification for ORM (Object-Relational Mapping), which describes how Java objects are mapped to database tables. JPA does not contain implementations but defines interfaces.

• Hibernate — one of the most popular implementations of JPA. It provides convenient ORM, caching, support for complex queries through HQL, transaction management.

In my practice, I have used all three methods: JDBC for simple tasks — when maximum performance and control are needed; JPA/Hibernate for more complex tasks, to work with objects and avoid writing a lot of SQL manually.