The following lines contain the word 'select', 'insert', 'update' or 'delete':
select
period_frequency_id
,object_version_number
,start_date
,unit_of_measure
,period_duration
,report_type
from psp_report_period_frequency_b
where period_frequency_id = p_period_frequency_id;
select
period_frequency_id
,object_version_number
,start_date
,unit_of_measure
,period_duration
,report_type
from psp_report_period_frequency_b
where period_frequency_id = p_period_frequency_id
for update nowait;