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