SELECT a.id, a.impressions, za.order, za.zone_id
                                    FROM wp_wpbrads AS a
                                    LEFT JOIN wp_wpbrzonesads AS za
                                    ON a.id = za.ad_id
                                    WHERE a.impressions =
                                    (SELECT MAX(a.impressions)
                                    FROM wp_wpbrads AS a
                                    LEFT JOIN wp_wpbrzonesads AS za
                                    ON a.id = za.ad_id WHERE a.impressions < '' AND za.zone_id = '11' AND a.active = 'Y'
                                    AND (a.expiry = '0000-00-00' OR a.expiry >= '2014-03-06')
                                    AND (a.startDate = '0000-00-00' OR a.startDate <= '2014-03-06')
                                    AND (a.impressions = 0 OR a.impressions > a.views) AND a.id != '0')
                                    UNION ALL
                                    SELECT a.id, a.impressions, za.order, za.zone_id
                                    FROM wp_wpbrads AS a
                                    LEFT JOIN wp_wpbrzonesads AS za
                                    ON a.id = za.ad_id
                                    WHERE a.impressions =
                                    (SELECT MAX(a.impressions) FROM wp_wpbrads AS a
                                    LEFT JOIN wp_wpbrzonesads AS za
                                    ON a.id = za.ad_id WHERE za.zone_id = '11' AND a.active = 'Y'
                                    AND (a.expiry = '0000-00-00' OR a.expiry >= '2014-03-06')
                                    AND (a.startDate = '0000-00-00' OR a.startDate <= '2014-03-06')
                                    AND (a.impressions = 0 OR a.impressions > a.views) AND a.id != '0')
                                    ORDER BY impressions ASC LIMIT 1;