Connecting to an Apache Derby/JavaDB database using Oracle SQL Developer?

Your derby url seems wrong. You need to point the url to the directory of the database, not the database itself.

Your derby url seems wrong. You need to point the url to the directory of the database, not the database itself. Jdbc:derby:/path/to/file/;create=true Have a look at the examples.

Jdbc:derby:/reference/phrases/french Open a connection to the database /reference/phrases/french. On a UNIX system, this would be the path of the directory. On a Windows system, the path would be C:\reference\phrases\french if the current drive were C.

If a jar file storing databases were in the user's classpath, this could also be a path within the jar file. From the docs: The connection URL syntax is as follows: jdbc:derby:subsubprotocol:databaseName;attribute=value Subsubprotocol, which is not typically specified, determines how Derby looks for a database: in a directory, in memory, in a class path, or in a jar file. Subsubprotocol is one of the following: directory: The default.

Specify this explicitly only to distinguish a database that might be ambiguous with one on the class path.

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