insert into nss_item(it_id,it_name,it_amount,it_stock_qty,it_explan) values('1745025834','[도서구입] (53) 이규정 소설-하얀나비, 버들소녀','','99999','')

1062 : Duplicate entry '1745025834' for key 1

error file : /home/klw/book_buy.php