insert into nss_item(it_id,it_name,it_amount,it_stock_qty,it_explan) values('1745091028','[도서구입] <대상>제1회 대한민국 디지털문학상','','99999','')

1062 : Duplicate entry '1745091028' for key 1

error file : /home/klw/book_buy.php