Text item number checking

Question

Hi,
is there a way werein the user can only input numbers and a decimal point into a text item.
thanks,
psdilag

Answer 1

Hello,
I am finding no problem in using this function in PL/SQL as well as forms. Here is what i have done in PL/SQL:
SQL> create or replace function isnumeric ( p_string in varchar2)
2 return boolean
3 as
4 l_number number;
5 begin
6 l_number := p_string;
7 return TRUE;
8 exception
9 when others then
10 return FALSE;
11 end;
12 /
Function created.
SQL> set serveroutput on
SQL> declare
2 a number;
3 begin
4 if isnumeric(123) then
5 dbms_output.put_line('number');
6 else
7 dbms_output.put_line('char');
8 end if;
9 end;
10 /
number
PL/SQL procedure successfully completed.
And in forms i used this code at WHEN-BUTTON-PRESSED trigger for testing purpose and here also it worked very well for me..........