The following lines contain the word 'select', 'insert', 'update' or 'delete':
select PH.CLM_DOCUMENT_NUMBER
into doc_num_desc
FROM PO_HEADERS PH
WHERE PH.SEGMENT1 = doc_num;
select hrall.location_code
into issue_office_desc
FROM hr_locations_all hrall, hr_location_extra_info loceit
WHERE loceit.location_id = hrall.location_id
and loceit.information_type = 'CLM_OFFICE_CODE'
and po_uda_data_util.is_location_valid(hrall.location_id, 'ISSUING_OFFICE') = 'Y'
and hrall.location_id = p_issue_office;