Derby allows you to supply a list of attributes to its database connection URL, which is a JDBC feature.
The attributes are specific to Derby.
You typically set attributes in a semicolon-separated list following the protocol and subprotocol (and, in some cases, the subsubprotocol). For information on how you set attributes, see Attributes of the Derby database connection URL. This section provides reference information only.
The DriverManager.getConnection method can take both a connection URL and a Properties object as arguments. If you specify any attributes both on the connection URL and in a Properties object, the attributes on the connection URL override the attributes in the Properties object.