我正在尝试获取唯一值，但我得到了以下语句的多个值。
SELECT bd.sessionkey,
bd.booking_id,
Concat(cs.name, ' ', cs.surname) AS name,
cs.phone,
cs.id,
pikuppoint,
droppoint,
bd.pickupdate,
bd.pickuptime,
bc.booking_id,
bc.paymenttype,
bc.pay,
bc.paydate,
bc.payment_status,
bp.booking_id,
bp.adultpassenger,
bp.childrenpassenger,
bp.babies,
bp.children_age,
bp.babies_age,
bp.totalpassenger,
bp.babies_seat,
bp.biglugage,
bp.mediumlugage,
bp.smalllugage,
b.order_id,
b.site,
b.transferdirection_id,
b.customer_id,
b.cartype,
b.specialrequirment,
b.bookingdate
FROM customerdetails cs,
bookingpassengers bp,
booking b,
bookingcost bc,
bookingdetails bd
WHERE bp.booking_id = bc.booking_id
AND bp.booking_id = b.order_id
AND b.order_id = bd.booking_id
AND b.order_id = bc.booking_id
AND bd.booking_id = bp.booking_id
AND cs.id = b.customer_id
AND bd.pickupdate BETWEEN Date_sub(Curdate(), INTERVAL 0 day) AND
Date_add(Curdate(), INTERVAL 1 day)
ORDER BY bd.pickupdate,
bd.pickuptime,
id
LIMIT 0, 15
任何帮助将不胜感激。