Php 选择带有订单字段的mysql查询

我有如下mysql查询

SELECT
p.prop_name,
p.prop_id,
p.star,
c. NAME,
pr.prov_name,
c.countryid,
c. NAME,
pr.provinceid,
r.room_typeid,
r.roomtype_name,
rr.is_promo,
r.price,
rr.final_price FROM
v_property p 
INNER JOIN set_country c ON(p.countryid = c.countryid)
INNER JOIN set_province pr ON(p.provinceid = pr.provinceid)
INNER JOIN room_type r ON(p.prop_id = r.prop_id)
INNER JOIN room_rate_promo rr ON(r.room_typeid = rr.room_typeid)
WHERE
  rr.date = '2015-11-09'
AND p.is_active = 1
AND rr.rating_status = 'ON'
AND p. STATUS = 1
AND p.provinceid = '5'
ORDER BY
  rr.final_price ASC

结果如下所示

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我希望

prop\u name

只显示每个

prop\u name

中的一行，并通过最低

最终价格

列和订单获得

is\u promo

到最高您就快到了。只需在“选择”之后添加“TOP1”。因此，这将是：

SELECT TOP 1
/* etc... */

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使用GROUP BY子句使属性名称唯一

SELECT
    p.prop_name,
    p.prop_id,
    p.star,
    c. NAME,
    pr.prov_name,
    c.countryid,
    c. NAME,
    pr.provinceid,
    r.room_typeid,
    r.roomtype_name,
    rr.is_promo,
    r.price,
    rr.final_price FROM
    v_property p 
    INNER JOIN set_country c ON(p.countryid = c.countryid)
    INNER JOIN set_province pr ON(p.provinceid = pr.provinceid)
    INNER JOIN room_type r ON(p.prop_id = r.prop_id)
    INNER JOIN room_rate_promo rr ON(r.room_typeid = rr.room_typeid)
    WHERE
      rr.date = '2015-11-09'
    AND p.is_active = 1
    AND rr.rating_status = 'ON'
    AND p. STATUS = 1
    AND p.provinceid = '5' 
    GROUP BY p.prop_name 
    ORDER BY
      rr.final_price ASC, is_promo DESC 

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查看ag文档是一个良好的开端