The following lines contain the word 'select', 'insert', 'update' or 'delete':
SELECT SUM(tro.percentage)
FROM IGS_PS_TCH_RESP_OVRD tro
WHERE tro.unit_cd = p_unit_cd AND
tro.version_number = p_version_number AND
tro.cal_type = p_cal_type AND
tro.ci_sequence_number = p_ci_sequence_number AND
tro.location_cd = p_location_cd AND
tro.unit_class = p_unit_class;