TEST ALPHANUMERIC

	Hi !
	Hope it helps.
	MyString VARCHAR(10);
	BEGIN 
	begin
	  Res:=to_number(MyString);
	  result=MyString;
	 exception 
	  result=0;
	 end;


	...

	...

	END;
	If MyString is alphanumeric : result=0
	If MyString is numeric : result=MyString
	 
	Thanks
	Fred