sql-server – sql 2005中的PIVOT

我需要转动一列(Numbers列).
示例需要此数据：

a 1
a 2
b 3
b 4
c 5
d 6
d 7
d 8
d 9
e 10
e 11
e 12
e 13
e 14

看起来像这样

a 1 2
b 3 4
c 5
d 6 7 8 9
e 10 11 12 13 14

任何帮助将不胜感激…

解决方法

CREATE TABLE [dbo].[stackoverflow_198716](
    [code] [varchar](1) NOT NULL,[number] [int] NOT NULL
) ON [PRIMARY]

DECLARE @sql AS varchar(max)
DECLARE @pivot_list AS varchar(max) -- Leave NULL for COALESCE technique
DECLARE @select_list AS varchar(max) -- Leave NULL for COALESCE technique

SELECT @pivot_list = COALESCE(@pivot_list + ',','') + '[' + CONVERT(varchar,PIVOT_CODE) + ']',@select_list = COALESCE(@select_list + ',PIVOT_CODE) + '] AS [col_' + CONVERT(varchar,PIVOT_CODE) + ']'
FROM (
    SELECT DISTINCT PIVOT_CODE
    FROM (
        SELECT code,number,ROW_NUMBER() OVER (PARTITION BY code ORDER BY number) AS PIVOT_CODE
        FROM stackoverflow_198716
    ) AS rows
) AS PIVOT_CODES

SET @sql = '
;WITH p AS (
    SELECT code,ROW_NUMBER() OVER (PARTITION BY code ORDER BY number) AS PIVOT_CODE
    FROM stackoverflow_198716
)
SELECT code,' + @select_list + '
FROM p
PIVOT (
    MIN(number)
    FOR PIVOT_CODE IN (
        ' + @pivot_list + '
    )
) AS pvt
'

PRINT @sql

EXEC (@sql)

（编辑：安卓应用网）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!