select url from cu_elements where element_id = :element_id insert into cu_user_element_map (user_id, element_id, curriculum_id, package_id, completion_date) select :user_id, :element_id, :curriculum_id, :package_id, current_timestamp where not exists (select 1 from cu_user_element_map where user_id = :user_id and element_id = :element_id)