Question

ID  Model   Color
1   BMW     Red
2   BMW     Green
3   BMW     Yellow
4   BMW     Black
5   Golf    Red
6   Golf    Green
7   Golf    Yellow
8   Golf    Black

我有汽车的颜色和颜色作为表格，我想把它作为一行。这将显示在c＃

中的datagrid中

Model   Color1  Color2  Color3  Color4
BMW     Red     Green   Yellow  Black
Golf    Red     Green   Yellow  Black

- 编辑我有一个有四种颜色的车型。我想让它显示在一行中。新名称列可以是任何ID，但ID可以更改。

所以它可能就像......

Model   1        2      3       4
BMW     Red     Green   Yellow  Black
Golf    Red     Green   Yellow  Black

Answer 1

我相信PIVOT会帮助你：

http://technet.microsoft.com/en-us/library/ms177410(v=sql.105).aspx

Answer 2

SELECT model, group_concat(DISTINCT color)
  FROM table
 GROUP BY model

它将提供2个重新编码。型号名称和颜色模型的字符串。然后你需要在C＃中处理以获得单独的颜色。

Answer 3

我从：

开始

SELECT COUNT(*), Model, Color
  FROM Table
 GROUP BY Model, Color

然后使用它返回的计数来构建你的表。

Answer 4

SELECT *
  FROM (SELECT Model, Color FROM TableName) as SourceT
 PIVOT (MAX(Color) FOR Color IN ([Red], [Green], [Yellow], [Black])) as Pvt

Answer 5

SELECT MODEL, [Red], [Green], [Yellow], [Black]
  FROM (
       SELECT model, color
         FROM tblCartable
        WHERE color IN ('Red', 'black', 'yellow', 'green')
       ) x
 PIVOT first(model) FOR color IN ([Red], [Green], [Yellow], [Black])) p

表列数据在一行sql查询中

5 个答案: