Table: airport_traffic_2
Columns: rank
airport
total_passengers
change_2008_2009
international_passengers
domestic_passengers
transit_passengers
aircraft_movements
freight_metric_tonnes

Question: What is the percent change from 08/09 for belfast international?
SQL: SELECT "change_2008_2009" FROM airport_traffic_2 WHERE "airport" = 'Belfast International'

Question: How many transit passengers at london gatwick?
SQL: SELECT "transit_passengers" FROM airport_traffic_2 WHERE "airport" = 'London Gatwick'

Question: What is the rank of the airport with freight ( metric tonnes ) of 255121?
SQL: SELECT "rank" FROM airport_traffic_2 WHERE "freight_metric_tonnes" = 255121

Question: What is the rank of the airport with a  freight ( metric tonnes ) of 23791?
SQL: SELECT "rank" FROM airport_traffic_2 WHERE "freight_metric_tonnes" = 23791