insert into nss_item(it_id,it_name,it_amount,it_stock_qty,it_explan) values('1745025711','[도서구입] 2007년 겨울호_계간한국문학세상','','99999','')

1062 : Duplicate entry '1745025711' for key 1

error file : /home/klw/book_buy.php