oracle8.1.6
select dotlrn_classes.class_key,
dotlrn_community_types.pretty_name,
dotlrn_community_types.package_id
from dotlrn_classes,
dotlrn_community_types
where dotlrn_community_types.community_type = dotlrn_classes.class_key
order by dotlrn_classes.class_key