APEX Validation : ORA-06502: PL/SQL: numeric or value error:

Question

Hello,
I need some help for a validation. User put value at 'minutes field'(need a number between 0-59).
My solution is to make two validations:
1 - No number:
Name: P1_MINUTES
Type : Regular expression
Validation Expression 1: P1_MINUTES
Validation Expression 2: ^\d{1,5}(\.\d{1,2})?$
2 - Higher number then 59:
Name: P1_MINUTES
Type : Function returning Boolean
Validation Expression 1:
if :P10_TOT_MINUTEN < 60 then
return true;
else
return false;
end if;
Validation Expression 2: -
Validation 2 gives this error(for example value = m) :
ORA-06502: PL/SQL: numeric or value error: character to number conversion error - the reason is clear value m is not numeric
How can this be solved!

Answer 1

Tony,
This is not the solution for my problem. If the user fills a character (say 'b') then I have still this error. Value 'b' is not numeric.
I need a solution: Combination from both validations or skip function (if validation number 1 is true then skip validation 2).
Do you have another solution for this problem.
Thanks
Walter