select o.*
from sys_object o,
     SYS_AU_ACTION a,
     SYS_AU_ACTION_TYPE ac
where a.ACTION_TYPE_ID = ac.id
  and ac.ident in ('UPDATE_OBJECT', 'CREATE_OBJECT')
  and a.user_id in ('800', '1')
  and a.stamp between '2019-08-01' and '2019-09-01'
  and o.id = a.obj_id
group by o.id;