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

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.

Fulfillment of the connectivity contract that allows the Java application to integrate with a back-end database is the promise the JPA persistence.xml file brings to fruition. What is the ...