Form builder y Oracle express

[kikolice]

debes de modificar el tnsnames de la instalacion de forms (oracle developer) incluir la entrada de la base de datos, quedaria algo como, solo modifica lo que dice TU_HOST

XE =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = TU_HOST)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = XE)
)
)