-- Each flight has been given standard industry metrics based on Cirium's standard definitions. -- This can be joined to the flight_extended view via the flight id, or to airport information via the arrival and -- and departure airport ids. Likewise, operator information can be joined via the operating_carrier_id. The flights -- can then be grouped by dates, airports or carriers. At which point, dividing the number of completed flights by the -- number of a performance flag (d0 for example), will provide the percentage of flights that have hit that metric for -- the chosen grouping. An example of this can be in the provided performance_benchmarks SQL. SELECT fli.flight_id , fli.published_departure , fli.departure_airport_id , fli.arrival_airport_id , fli.operating_carrier_id , fli.is_cancelled , fli.operating_carrier_id , fli.block_time_overshoot , CASE WHEN fli.block_time_overshoot <= 0 THEN 1 ELSE 0 END as b0 , CASE WHEN fli.actual_gate_departure IS NOT NULL AND fli.actual_gate_arrival IS NOT NULL THEN 1 ELSE 0 END as CF , fli.gate_departure_delay , CASE WHEN fli.gate_departure_delay <= 0 THEN 1 ELSE 0 END AS d0 , CASE WHEN fli.gate_departure_delay <= 5 THEN 1 ELSE 0 END AS d5 , CASE WHEN fli.gate_departure_delay <= 14 THEN 1 ELSE 0 END AS d14 , CASE WHEN fli.gate_departure_delay <= 15 THEN 1 ELSE 0 END AS d15 , CASE WHEN fli.gate_departure_delay <= 30 THEN 1 ELSE 0 END AS d30 , CASE WHEN fli.gate_departure_delay <= 60 THEN 1 ELSE 0 END AS d60 , CASE WHEN fli.gate_departure_delay <= 120 THEN 1 ELSE 0 END AS d120 , CASE WHEN fli.gate_departure_delay <= -15 THEN 1 ELSE 0 END AS dNeg15 , fli.gate_arrival_delay , CASE WHEN fli.gate_arrival_delay <= 0 THEN 1 ELSE 0 END AS a0 , CASE WHEN fli.gate_arrival_delay <= 0 THEN 1 ELSE 0 END AS a5 , CASE WHEN fli.gate_arrival_delay <= 14 THEN 1 ELSE 0 END AS a14 , CASE WHEN fli.gate_arrival_delay <= 15 THEN 1 ELSE 0 END AS a15 , CASE WHEN fli.gate_arrival_delay <= 30 THEN 1 ELSE 0 END AS a30 , CASE WHEN fli.gate_arrival_delay <= 60 THEN 1 ELSE 0 END AS a60 , CASE WHEN fli.gate_arrival_delay <= 120 THEN 1 ELSE 0 END AS a120 , CASE WHEN fli.gate_arrival_delay <= -15 THEN 1 ELSE 0 END AS aNeg15 from flights as fli