In StackOverflow someone ask Where can I find the JDBC driver for Blackfish?

The JDBC Drivers are located in the Blackfish SQL lib installation directory. You can download and install The Blackfish SQL 8 for Java Trial (Windows Version) wich includes the JDBC Drivers from here.

check theses files

• jds.jar Local JDBC database connectivity
• jdsremote.jar Remote JDBC thin client database connectivity

You can read theses articles for more info

• Blackfish SQL Establishing Connections
• Blackfish SQL Deploying Blackfish SQL Database Applications