สำรวจกลุ่มเจ้าของยานพาหนะ

SELECT
    user_id,
    charging_station_location,
    charging_cost,
    
    -- Break records into 100 equally-sized buckets based on
    -- charging_cost
    ___(___) OVER(
      ORDER BY ___
    ) AS survey_group
    
FROM ELECTRIC_VEHICLES.charging

-- Order by survey_group and charging_station_location
ORDER BY ___, ___;