JDBC (Java Database Connectivity) is the Java API that manages connecting to a database, issuing queries and commands, and handling result sets obtained from the database.

Write, build, and run an example application that persists data to and from a relational database using Hibernate, JPA, and the repository pattern.

A developer shouldn't spend time on database table creation when unit tests run. Instead, have Hibernate create tables in the database for JPA and other data-driven applications.

Here's a quick JDBC with HSQLDB tutorial to get you up and running with Java database connectivity and the popular HyperSQL database.