Okay,so you want to reset all stats to 1 and all Jobs to Novice level 1/1,then I'll explain how you do that.
1. You have to open your MySQL Server or phpmyadmin.
2. You open the function to run a SQL Script.
3. You have to run this Script :
UPDATE `char` set `Class`=0,`base_level`=1,`job_level`=1,`base_exp`=0,`job_exp`=0;
UPDATE `char` set `str`=1,`agi`=1,`vit`=1,`int`=1,`dex`=1,`luk`=1;
UPDATE `char` set `status_point` = (45+(base_level*160)) where `base_level`>5;
UPDATE `char` set `status_point` = (status_point+52) where class >= 4001 and class <= 4022;
This SQL Script is going to turn all your Characters into Novices level 1/1 with no exp and it is going to reset all stats to 1.