Thanks Andrew...
I just wondered if there was another way than 6502
"Andrew Allen" <andrew.allen_at_handleman.com> wrote in message
news:3E5E3A82.8020605_at_handleman.com...
> Telemachus wrote:
> > But I can't find an easy solution.
> >
> > For 817 without rolling your own PL/SQL func...
> > Is there a fast builtin way to do IS_A_NUMBER('STRING') or is_a_float()
or
> > is_an_integer()
> >
> >
> > i.e. given a string return true if the string represents a valid number
or
> > false. Or do most people trap an error from TO_NUMBER ?
> >
> how about something like this
> SQL$ declare num_var number;
> 2 begin
> 3 select 'abc' into num_var from dual;
> 4 end;
> 5 /
> declare num_var number;
> *
> ERROR at line 1:
> ORA-06502: PL/SQL: numeric or value error: character to number
> conversion error
> ORA-06512: at line 3
>
> so, if you get an ORA-6502 then the number is not numeric.
> Handle this in the exception part of your function and you are all set.
> I leave the details up to you, but it is simple enough.
> --
> Andrew
>
Received on Thu Feb 27 2003 - 10:58:08 CST
