oracle - 我如何为每个承诺进行第一笔付款，在该输出行上显示“第一笔付款”

Question

DECLARE 
    pledgeid dd_pledge.idpledge%TYPE;
    amtpledge dd_pledge.pledgeamt%TYPE;
    monthspay dd_pledge.paymonths%TYPE;
    datepay dd_payment.paydate%TYPE;
    amtpay dd_payment.payamt%TYPE;
    donorid dd_pledge.iddonor%TYPE;
    CURSOR cur_pledges IS
    SELECT pl.idpledge, pl.pledgeamt, pl.paymonths, pay.paydate, pay.payamt, pl.iddonor 
    FROM dd_pledge pl JOIN dd_payment pay 
    ON pl.idpledge = pay.idpledge 
    WHERE pl.iddonor = 309
    ORDER BY pl.idpledge, pay.paydate;
BEGIN
    OPEN cur_pledges;
    LOOP 
        FETCH cur_pledges INTO pledgeid, amtpledge, monthspay, datepay, amtpay, donorid;
    DBMS_OUTPUT.PUT_LINE('Pledge ID: '|| pledgeid  || ' Pledge Amount: '|| amtpledge || ' Monthly Payments:  '|| monthspay || ' Payment Date: '|| datepay || ' Amount Paid: '|| amtpay );
    EXIT WHEN cur_pledges%NOTFOUND;
    END LOOP;
CLOSE cur_pledges;
END;

请帮忙！！！我无法弄清楚如何为首次付款提供消息

Answer 1

如果我正确理解您的问题，请将dbms_output消息放在open.