insert into nss_item(it_id,it_name,it_amount,it_stock_qty,it_explan) values('1745025651','[도서구입] (25) 이명재 시집-새벽그리기','','99999','')

1062 : Duplicate entry '1745025651' for key 1

error file : /home/klw/book_buy.php