All such databases are read-only.
To access an unarchived database from the classpath, use the
classpath subsubprotocol.
For example, for a database called sample in
C:\\demo\databases,
you can put the
C:\\demo\databases
directory in the classpath and access sample like this:
jdbc:derby:classpath:sample
If only C:\
were in the classpath/modulepath, you could access sample (read-only) like this:
jdbc:derby:classpath:demo/databases/sample