Great news!!!!
Thanks to all of you.
Just one minor problem in the sql.
In oracle 8.1.6 the constraint identifiers are too long. I've changed the create table:
create table dav_site_node_folder_map (
node_id integer
constraint dav_site_fldr_map_node_id_un
unique
constraint dav_side_fldr_map_node_id_fk
references apm_packages,
folder_id integer
constraint dav_impls_folder_id_fk
references cr_folders,
enabled_p char(1)
constraint dav_site_fldr_map_enabled_p
check (enabled_p in ('t','f'))
);
\-.-/ juanjo