Here's a query that will show objects associated with entries in kottd$ select u.name user_name ,o.name object_name ,case when o.type# = 13 then 'TYPE' when o.type# = 14 then 'TYPE BODY' else 'UNKNOWN' end as obj_type from kottd$ kd, obj$ o, user$ u where o.oid$ = sys_nc_oid$ and u.user# = o.owner# / The kott% tables appear to be the underlying DD tables for types.