insert into nss_item(it_id,it_name,it_amount,it_stock_qty,it_explan) values('1745025886','[도서구입] 나를 찾아 떠나는 여행 - 채종환(시집)','','99999','')

1062 : Duplicate entry '1745025886' for key 1

error file : /home/klw/book_buy.php