13:52:42	call new_procedure	Error Code: 1305. FUNCTION student.rand_string does not exist	0.000 sec

CREATE DEFINER=`root`@`localhost` PROCEDURE `new_procedure`()
BEGIN
  set @a=101;
  while @a<2000 do
  set @b = rand_string(10);
  set @c=1;
  insert into example1 values(@a,@b,@c);
  set @a=@a+1;
  if(@a%2=0)
     then
     set @c=0;
     end if;
  end while;
END