MySQL的 - 多计数，最小值，最大值查询

Question

SELECT 
`name`, count(`cid`) AS count, Min(`price-3`) AS min, Max(`price-3`) AS max 
FROM ed_prices 
WHERE type="M" 
GROUP BY cid, type 

该查询给我我想要什么类型M.但我有4种不同的类型，如M和结果为他们每个人是必要的。虽然此查询给了我这样的结果：

name, count, min, max 

我需要这样一个结果：

name, countM, minM, maxM, countP, minP, maxP, countZ, minZ, maxZ ... 

我怎样才能做到这一点？

Answer 1

我知道这是不是正是你要寻找的，但你能可能与这方面的工作：

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您也可以尝试在此自连接的结果合并成一个线，得到的结果是你的问题提出要求，但它是比任何产品屈指可数少可扩展..

SELECT `name` 
     , countM 
     , minM 
     , maxM 
     , countZ 
     , minZ 
     , maxZ 
     , countP 
     , minP 
     , maxP 
     , countQ 
     , minQ 
     , maxQ 
    FROM 
     (SELECT `name` 
       , count(`cid`) AS countM 
       , Min(`price-3`) AS minM 
       , Max(`price-3`) AS maxM 
      FROM ed_prices 
     WHERE type = "M" 
     GROUP BY cid) MType 
    INNER JOIN 
     (SELECT `name` 
       , count(`cid`) AS countP 
       , Min(`price-3`) AS minP 
       , Max(`price-3`) AS maxP 
      FROM ed_prices 
     WHERE type = "P" 
     GROUP BY cid) PType ON MType.`name` = PType.`name` 
    INNER JOIN 
     (SELECT `name` 
       , count(`cid`) AS countZ 
       , Min(`price-3`) AS minZ 
       , Max(`price-3`) AS maxZ 
      FROM ed_prices 
     WHERE type = "Z" 
     GROUP BY cid) ZType ON MType.`name` = ZType.`name` 
    INNER JOIN 
     (SELECT `name` 
       , count(`cid`) AS countQ 
       , Min(`price-3`) AS minQ 
       , Max(`price-3`) AS maxQ 
      FROM ed_prices 
     WHERE type = "Q" 
     GROUP BY cid) QType ON MType.`name` = QType.`name`