insert into nss_item(it_id,it_name,it_amount,it_stock_qty,it_explan) values('1745070075','[도서구입] (49)나비잡는 봄비-오경근 동시집','','99999','')

1062 : Duplicate entry '1745070075' for key 1

error file : /home/klw/book_buy.php