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WITH flight_30625 AS ( SELECT aircraft_code FROM flights WHERE flight_id = '30625' ), seat_components AS ( SELECT LEFT(seat_no, -1) AS seat_num, SUBSTRING(seat_no FROM '.$') AS seat_char FROM seats WHERE aircraft_code = (SELECT aircraft_code FROM flight_30625) ) SELECT -- COUNT(seats_per_row) AS rows_count, SUM(seats_per_row) AS total_seats, SUM (boarding_count) as occupied_seats FROM ( SELECT COUNT(seat_num) AS seats_per_row FROM seat_components GROUP BY seat_num ) AS row_counts, Select count(boarding_no) as boarding_count From boarding_passes Group by flight_id ;

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