sql - SQL RANK() over PARTITION 在连接表上

Question

我有两个表 RSLTS 和 CONTACTS：

RSLTS

 QRY_ID  |  RES_ID  |  SCORE
-----------------------------
   A     |    1     |    15
   A     |    2     |    32
   A     |    3     |    29
   C     |    7     |    61
   C     |    9     |    30

联系方式

 C_ID  |  QRY_ID  |  RES_ID
----------------------------
  1    |    A     |    2
  2    |    A     |    1
  3    |    C     |    9

我正在尝试创建一个报告，该报告将为每个CONTACT记录 ( C_ID)显示其组 () 内的RSLTS表中RANK()的RES_ID(by )。使用上面的数据，它看起来像这样：SCOREQRY_ID

 C_ID  |  QRY_ID  |  RES_ID  |  SCORE  |  Rank
-----------------------------------------------
  1    |    A     |    2     |    32   |   1
  2    |    A     |    1     |    15   |   3
  3    |    C     |    9     |    30   |   2

到目前为止，我尝试了这个，但它返回最后一行的 Rank = 1 （并且第二行的 rank = 2 这也是错误的）

SELECT
    C.*
    ,R.SCORE
    ,RANK() OVER (PARTITION BY R.QRY_ID ORDER BY R.SCORE DESC)
FROM CONTACTS C LEFT JOIN RSLTS R
ON C.RES_ID = R.RES_ID
AND C.QRY_ID = R.QRY_ID

更新：SQLFiddle

Answer 1

因为排名完全不取决于联系人

RANKED_RSLTS

 QRY_ID  |  RES_ID  |  SCORE |  RANK
-------------------------------------
   A     |    1     |    15  |   3
   A     |    2     |    32  |   1
   A     |    3     |    29  |   2
   C     |    7     |    61  |   1
   C     |    9     |    30  |   2

因此 ：

SELECT
    C.*
    ,R.SCORE
    ,MYRANK
FROM CONTACTS C LEFT JOIN
(SELECT  *,
 MYRANK = RANK() OVER (PARTITION BY QRY_ID ORDER BY SCORE DESC)
  FROM RSLTS)  R
ON C.RES_ID = R.RES_ID
AND C.QRY_ID = R.QRY_ID

Answer 2

SELECT a.C_ID,a.QRY_ID,a.RES_ID,b.SCORE,ROW_NUMBER() OVER (ORDER BY SCORE DESC) AS [RANK]
FROM CONTACTS a JOIN RSLTS b ON a.QRY_ID=b.QRY_ID AND a.RES_ID=b.RES_ID
ORDER BY a.C_ID