The following lines contain the word 'select', 'insert', 'update' or 'delete':
Select trx_number
into l_trx_number
from ra_customer_trx_all
where customer_trx_id = p_previous_customer_trx_id;
Select trx_date
into l_trx_date
from ra_customer_trx_all
where customer_trx_id = p_previous_customer_trx_id;