如何在SQL Server中将多行更改为单行 [英] how to change multiple row as a single row in sql server

问题描述

我在sql server中将多行转换为单行（多列）。



例如，



sql数据后跟，

 name年龄
 
 Anbu  45  
 senthil  25  
 Raj  27  
 

我所需的输出是

 Anbu  45  Senthil  25  Raj  27  

怎么做？

解决方案

我很少需要将列数据转换为行数据 - 通常是以标记方式存储数据时。这是通过同一个表上的内连接来实现的，但每个上都有不同的别名和约束。

  SELECT  A.name，A，age，B.name，B.age，C.name，C.age 
  FROM  YOUR_TABLE   A 
  INNER  加入 YOUR_TABLE  as  B 
  ON  A.something = b.something 
  INNER   JOIN  YOUR_TABLE C 
  ON  B.something = c.something 
  WHERE  A.whatever = value 
  AND  B.whatever = value 
  AND  C.whatever = value 

等等等等



您需要确定如何链接这些。

I have convert multiple row into single row(multiple column) in sql server.

For example,

sql data is followed by,

name     Age

Anbu     45
senthil  25
Raj      27

My required output is

Anbu  45  Senthil  25  Raj 27

How to do this?

解决方案

I not infrequently need to convert column data into row data - typically when data is stored in tagged fashion. This is accomplished by inner-joins on the same table, but with different alias' and constraints on each one.

SELECT A.name, A,age, B.name, B.age, C.name, C.age
 FROM YOUR_TABLE as A
  INNER JOIN YOUR_TABLE as B
    ON A.something=b.something 
  INNER JOIN YOUR_TABLE C
    ON B.something=c.something 
 WHERE A.whatever=value 
 AND B.whatever=value 
 AND C.whatever=value

etc. etc. etc.

You'll need to determine how to link these.

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