insert into nss_item(it_id,it_name,it_amount,it_stock_qty,it_explan) values('1745025886','[도서구입] 김중양 - 명산에 오르면 세상이 보인다','','99999','')

1062 : Duplicate entry '1745025886' for key 1

error file : /home/klw/book_buy.php