Sql server 2008 SQL Server中的简单查询复制

我需要根据以下要求筛选查询

我的问题是：

select * from tbltemp

电流输出：

Caterogy   SeqCategory   DescofChange    RequestId     TaskCompVer
-----------------------------------------------------------------------------    
BIGBEAR    BIGBEAR       BIGBEAR         B14020002     Provide ASPM Wish List
ARCUS3PL   KOJN-RE       ARCUS3PL        B14020002     Provide ASPM Wish List
AURORA     Aurora        Aurora          B14020003     Provide ASPM Wish List

期望输出：

Caterogy           SeqCategory       DescofChange      RequestId   TaskCompVer
---------------------------------------------------------------------------------------    
BIGBEAR,ARCUS3PL   BIGBEAR,KOJN-RE   BIGBEAR,ARCUS3PL  B14020002   Provide ASPM Wish List
AURORA             Aurora            Aurora            B14020003   Provide ASPM Wish List

我需要如何过滤上面的select查询，以便它生成实际输出

我尝试使用STUFF，但出现语法错误：

SELECT
    RequestId, 
    STUFF((SELECT ', ' + temp2.WishItemPE
           FROM tbltemp temp2  
           WHERE temp2.TaskCompVer = temp1.TaskCompVer 
             AND temp2.RequestId = temp1.RequestId        
           FOR XML PATH('')), 1, 1, '') AS WishItemPE  
FROM
    tbltemp

错误：

“XML”附近的语法不正确

您可以使用stuff函数：

select distinct stuff(
  ( select  cast(',' as varchar(max)) + t1.Category
    from temp t1
    WHERE t1.RequestID = t.RequestID
    order by t1.Category
    for xml path('')
    ), 1, 1, '') as Category,

 stuff(
  ( select  cast(',' as varchar(max)) + t1.SeqCategory
    from temp t1
    WHERE t1.RequestID = t.RequestID
    order by t1.SeqCategory
    for xml path('')
    ), 1, 1, '') as SeqCategory,
 stuff(
  ( select  cast(',' as varchar(max)) + t1.DescofChange
    from temp t1
    WHERE t1.RequestID = t.RequestID
    order by t1.DescofChange
    for xml path('')
    ), 1, 1, '') as DescofChange, 
  RequestID, 
 stuff(
  ( select  Distinct cast(',' as varchar(max)) + t1.TaskProvider
    from temp t1
    WHERE t1.RequestID = t.RequestID

    for xml path('')
    ), 1, 1, '') as TaskProvider
from temp t

此处演示：

编辑 除此之外，还可以交叉应用：

---

演示：

首先，为什么会出现错误

1.您没有为基表指定表别名。查询中的最后一行

FROM 
 tbltemp temp1
         ^here

2.表tbltemp中没有列名为WishItemPE的列。3号线

最后，您必须使用下面的查询来获得所需的输出

STUFF((SELECT ', ' + temp2.WishItemPE

最终查询

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请参阅sry..我正在使用旧的sqlserver数据库…那是sry吗？东西不起作用..谢谢你的问题用SQL SERVER 2008标记，东西在这个版本中..我正在使用SQL 2008，但我正在连接到一个较旧的版本y？东西坏了。。

STUFF((SELECT ', ' + temp2.WishItemPE

SELECT distinct
    STUFF((SELECT ', ' + temp2.[Caterogy]
           FROM tbltemp temp2  
           WHERE temp2.TaskCompVer = temp1.TaskCompVer 
             AND temp2.RequestId = temp1.RequestId     
           FOR XML PATH('')), 1, 1, '') AS [Caterogy],
    RequestId, 
    STUFF((SELECT ', ' + temp2.[SeqCategory]
           FROM tbltemp temp2  
           WHERE temp2.TaskCompVer = temp1.TaskCompVer 
             AND temp2.RequestId = temp1.RequestId     
           FOR XML PATH('')), 1, 1, '') AS [SeqCategory],
    STUFF((SELECT ', ' + temp2.[DescofChange]
           FROM tbltemp temp2  
           WHERE temp2.TaskCompVer = temp1.TaskCompVer 
             AND temp2.RequestId = temp1.RequestId     
           FOR XML PATH('')), 1, 1, '') AS [DescofChange],
    [TaskCompVer]
FROM
    tbltemp as temp1