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

Prior to the release of Java 9, Apache Derby was distributed along with the JDK and named JavaDB. As a result, it was common for developers interested in Java database connectivity (JDBC) to learn on ...

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.