insert into nss_item(it_id,it_name,it_amount,it_stock_qty,it_explan) values('1745025948','[도서구입] (56번) 이우선 시집-강아지풀, 장한선 아이들','','99999','')

1062 : Duplicate entry '1745025948' for key 1

error file : /home/klw/book_buy.php