insert into nss_item(it_id,it_name,it_amount,it_stock_qty,it_explan) values('1745025712','[도서구입] 아름다운 인생 _ 김연하(수필)','','99999','')

1062 : Duplicate entry '1745025712' for key 1

error file : /home/klw/book_buy.php