SELECT MAX( banner.data_fine ) FROM banner, banner2, banner4, banner5, banner6, banner7, banner8 WHERE banner.data_fine <= banner2.data_fine AND banner2.data_fine <= banner4.data_fine AND banner4.data_fine <= banner5.data_fine AND banner5.data_fine <= banner6.data_fine AND banner6.data_fine <= banner7.data_fine AND banner7.data_fine <= banner8.data_fine