The following lines contain the word 'select', 'insert', 'update' or 'delete':
SELECT nvl(global_agreement_flag,'N'),
type_lookup_code
INTO l_global_agreement_flag,
l_document_subtype
FROM po_headers_all
WHERE po_header_id=p_source_id_int_1;
select po_header_id
into l_bpa_header_id
from po_releases_all
where po_release_id=l_document_id;