wrong number or types of arguments in call to my procedure

Question

hi I wrote this code to create a procedure to return a Boolean value based on the if conditions but when I execute it I got this error:

ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'DDPAY_SP'
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
06550. 00000 -  "line %s, column %s:\n%s"
*Cause:    Usually a PL/SQL compilation error.
*Action:

here is my procedure

create or replace procedure  DDPAY_SP (

donor_id dd_donor.iddonor%type,
pldgstatus out dd_pledge.idstatus%type,
monthplan  out dd_pledge.paymonths%type,
ret out boolean)
IS
begin

select idstatus, paymonths into
pldgstatus, monthplan from dd_pledge 
where iddonor = donor_id ;

if (pldgstatus = 10 AND monthplan >0)
then ret:= true;
else
ret:= false;
end if;

end;

and this how I execute it

 EXECUTE DDPAY_SP (308);

I didn't put much talk I hope it's clear enough for you

I read online it recommends me to check the naming also the data type which I did but nothing change

any ideas

Answer 1

If you don't need the second and third arguments you could declare those as variables in the procedure instead of arguments, as follows:

CREATE OR REPLACE PROCEDURE DDPAY_SP(DONOR_ID IN  DD_DONOR.IDDONOR%TYPE,
                                     RET      OUT BOOLEAN)
IS
  nPayment_count  NUMBER;
BEGIN 
  SELECT COUNT(*)
    INTO nPayment_count  
    FROM DD_PLEDGE p
    WHERE p.IDDONOR = DONOR_ID AND
          p.IDSTATUS = 10 AND
          p.PAYMONTHS > 0;

  IF nPayment_count > 0 THEN
    RET := TRUE;
  END IF;
EXCEPTION
  WHEN OTHERS THEN
    DBMS_OUTPUT.PUT_LINE('DD_PAY - exception: ' || SQLCODE || ' : ' || SQLERRM);
    RAISE;
END DDPAY_SP;

I've included an example of an EXCEPTION handler at the end of DD_PAY. It's always a good idea to include at least this minimal handler so that in the event an exception occurs you'll get some indication of where the problem lies.

Because this procedure returns a BOOLEAN value, and BOOLEANs cannot (to the best of my knowledge) be used from SQL*Plus, you'll have to invoke it from a PL/SQL block, as follows:

DECLARE
  bRetval  BOOLEAN;
BEGIN
  DD_PAY(308, bRetval);
  DBMS_OUTPUT.PUT_LINE('Returned value is ' ||
                       CASE bRetval
                         WHEN TRUE THEN 'TRUE'
                         ELSE 'FALSE'
                       END);
END;

Give that a try.

EDIT: rewrote procedure based on further information from later comments.

Share and enjoy.