insert into nss_item(it_id,it_name,it_amount,it_stock_qty,it_explan) values('1745025773','[도서구입] (28)박응상-삶의 우주 나의 은하계','','99999','')

1062 : Duplicate entry '1745025773' for key 1

error file : /home/klw/book_buy.php