Referencing other Java-SQL classes

Installed classes can reference other classes in the same JAR file and classes previously installed in the same database, but they cannot reference classes in other databases.

If the classes in a JAR file do reference undefined classes, an error may result:

The definition of a class can contain references to unsupported classes and methods as long as they are not actively referenced or invoked. Similarly, an installed class can contain a reference to a user-defined class that is not installed in the same database as long as the class is not instantiated or referenced.