insert into nss_item(it_id,it_name,it_amount,it_stock_qty,it_explan) values('1745025773','[도서구입] (4)김여화-행복의 언덕에서(수필)','','99999','')

1062 : Duplicate entry '1745025773' for key 1

error file : /home/klw/book_buy.php