MYSQL更新單記錄第二表中的多個記錄中的MIN＆MAX值的表MYSQL

Question

我有2個表屋&可用性 - 我想查找AVAILABILITY中每個HOUSEID的RENT字段的最小值和最大值，它包含許多記錄每JOUSEID，然後更新的房屋表字段MIN_RENT和MAX_RENT，房屋表包含每HOUSE ID

HOUSES 

houseid min_rent max_rent 
    121 40.00 90.00 
    122 50.00 80.00 
    123 40.00 100.00 

AVAILABILITY 

house_id date  rent 
    121 01/01/12 40 
    121 01/02/12 50 
    121 01/03/12 60 
    121 01/04/12 90 
    122 01/01/12 40 
    122 01/02/12 50 
    122 01/03/12 60 
    122 01/04/12 80 
    123 01/01/12 40 
    123 01/02/12 50 
    123 01/03/12 60 
    123 01/04/12 90 

問候只有一個條目 馬丁

Answer 1

更快的溶液

UPDATE 
    HOUSES H 
    ,(
     SELECT 
      house_id 
      ,MIN(rent) AS min 
      ,MAX(rent) AS max 
     FROM 
      AVAILABILITY 
     GROUP BY 
      house_id 
    ) AS A 
SET 
    min_rent = A.min 
    ,max_rent = A.max 
WHERE 
    H.house_id = A.house_id