The following lines contain the word 'select', 'insert', 'update' or 'delete':
SELECT podt.type_name
INTO x_type_name
FROM po_document_types podt
WHERE podt.document_type_code = x_doc_type_code
AND podt.document_subtype = x_doc_subtype;
SELECT podt.security_level_code
INTO x_security_level
FROM po_document_types podt
WHERE podt.document_type_code = x_doc_type_code
AND podt.document_subtype = x_doc_subtype;
SELECT podt.access_level_code
INTO x_access_level
FROM po_document_types podt
WHERE podt.document_type_code = x_doc_type_code
AND podt.document_subtype = x_doc_subtype;