The following lines contain the word 'select', 'insert', 'update' or 'delete':
select
result_set_id
,gradual_value_number_from
,gradual_value_number_to
,grade_id
,object_version_number
from pqh_de_result_sets
where result_set_id = p_result_set_id;
select
result_set_id
,gradual_value_number_from
,gradual_value_number_to
,grade_id
,object_version_number
from pqh_de_result_sets
where result_set_id = p_result_set_id
for update nowait;