REP-1401: 'no_daysformula':Fatal PL/SQL error occured. ora-06503: PL/SQL : Functio returned without value. REP-0619: You cannot run without a layout.

Question

Hi everyone.
Can anyone tell me what is wrong in this code below?
Code:
function NO_DAYSFormula return Number is
begin
  IF TO_CHAR(TO_DATE(:P_FR_DT, 'DD-MM-RRRR'), 'RRRR') =TO_CHAR(TO_DATE(:ACCT_OPN_DT, 'DD-MM-RRRR'), 'RRRR')
  AND :P_TO_DT<:MATURITY_DATE
  AND :ACCT_OPN_DT>:P_FR_DT
  THEN RETURN (:P_TO_DT-:ACCT_OPN_DT+1);
  ELSIF TO_CHAR(TO_DATE(:P_FR_DT, 'DD-MM-RRRR'), 'RRRR') =TO_CHAR(TO_DATE(:ACCT_OPN_DT, 'DD-MM-RRRR'), 'RRRR')
  AND :P_TO_DT<:MATURITY_DATE
  AND :ACCT_OPN_DT<:P_FR_DT
  THEN RETURN (:P_FR_DT-:P_TO_DT+1);
  ELSIF TO_CHAR(TO_DATE(:P_FR_DT, 'DD-MM-RRRR'), 'RRRR') =TO_CHAR(TO_DATE(:ACCT_OPN_DT, 'DD-MM-RRRR'), 'RRRR')
   AND :P_TO_DT>:MATURITY_DATE
   AND :ACCT_OPN_DT<:P_FR_DT
  THEN RETURN (:P_FR_DT-:MATURITY_DATE+1);
  END IF;
END;
It gets compiled successfully but when i run the report, i get 2 errors.
Error 1:
REP-1401: 'no_daysformula':Fatal PL/SQL error occurred.
ora-06503: PL/SQL : Function returned without value.
Error 2:
REP-0619: You cannot run without a layout.
Should i use only 1 return statement?
Can i use as many return statements as i want?
What is the exact mistake? Please let me know.
Thank You.

Answer 1

Let me clear you the first thing...
If you get any fatal errors while running the report (e.g., function returned without value,no value etc.,) the report will show
REP-0619: You cannot run without a layout.
So you just correct the function 'no_daysformula' .
First of all you run the report without that formula column.
If it works fine then , Check the return value of your formula column (Your formula column properties --> Return value --> value (It will be DATE as i think so).
As function will always return a single value, Check your formula 'no_daysformula' returns the same.
declare a return variable say for example..
DECLARE
V_DATE DATE;
BEGIN
--YOUR CODE---
RETURN V_DATE := (RETURN VALUE)
END;
Last but not least ... use Else condition to return (NULL or any value ) in your code and check..
If any Problem persists let me know
Regards,
Soofi.