sql-server rank函数通过一些限制来处理重复项

Question

我的表如下：

DECLARE @Table TABLE(
        NAME VARCHAR(20),
        MOBILE VARCHAR(20),
        TIME INT
)

INSERT INTO @Table SELECT 'A','1111111',10
INSERT INTO @Table SELECT 'B','222222',20
INSERT INTO @Table SELECT 'C','333333',60
INSERT INTO @Table SELECT 'D','4444444',70
INSERT INTO @Table SELECT 'A','1111111',100
INSERT INTO @Table SELECT 'B','222222',10

SELECT NAME,MOBILE,TIME,
        RANK() OVER (ORDER BY TIME asc) AS xRank
FROM 
( 
SELECT NAME ,MOBILE ,TIME
FROM @Table
) AS a
ORDER BY 1

我想要的结果如下所示。如果两行有相同的NAME和MOBILE，则只显示一行时间较短的行：

sqlfiddle 1

NAME    MOBILE  TIME    XRANK
A   1111111 10  1
B   222222  10  1
C   333333  60  3
D   4444444 70  4

sqlfiddle 2

NAME MOBILE TIME   XRANK
A   1111111 10      1
B   1111111 10      2
B   222222  20      3
C   333333  60      4
D   4444444 70      5

Answer 1

;with cteRank
as
(
  SELECT 
     NAME, MOBILE, TIME,
     rn = row_number() OVER (partition by name, mobile ORDER BY TIME asc)
  FROM @Table
)
SELECT NAME, MOBILE, TIME
FROM cteRank
where rn = 1
ORDER BY 1

输出（“如果两行具有相同的NAME和MOBILE，则只显示一行时间较短”）：

NAME MOBILE TIME
A   1111111 10
B   1111111 10
B   222222  20
C   333333  60
D   4444444 70

Answer 2

试试这个

SELECT name, 
       mobile, 
       time, 
       rn, 
       Row_number() 
         OVER ( 
           ORDER BY name) AS XRANK 
FROM   (SELECT name, 
               mobile, 
               time, 
               Row_number() 
                 OVER( 
                   partition BY name, mobile 
                   ORDER BY name ASC) AS RN 
        FROM   @Table) AS T 
WHERE  rn = 1 

Working Fiddle

<强>输出

NAME    MOBILE  TIME    XRANK
A   1111111 10  1
B   1111111 10  2
B   222222  20  3
C   333333  60  4
D   4444444 70  5