具有varchar数据类型的PIVOT [英] PIVOT with varchar datatype

问题描述

我正在尝试在表中添加一些数据，但是我无法做到这一点，因为我找不到使用charchar列进行数据处理的方法.我有这张桌子:

I´m trying to PIVOT some data in a table, but I cannot do it because I do not find the way to do it using carchar columns. I have this table:

我需要的是这个

我需要将"ug_label"行数据用作列.由于数据类型为VARCHAR，因此我无法在PIVOT中使用聚合函数.

I need to use the 'ug_label' row data as columns. As the datatype is VARCHAR, I cannot use an agregate function inside the PIVOT.

我想我可能需要这样的东西:

I think I might need something like this:

SELECT *
FROM
(SELECT [c_id]
      ,[c_lname] as [Apellido]
      ,[c_fname] as [Nombre]
      ,[c_nick_name] as [documento]      
      ,[ut_text] 
      ,f.ug_label
  FROM [pegasys].[dbo].[cardholder] c
  inner join [pegasys].[dbo].[udftext] u on c.c_id = u.ut_cardholder_id 
  inner join [pegasys].[dbo].[udfgen] f on u.ut_udfgen_id = f.ug_id) AS S  
PIVOT
(
    UT_TEXT
    FOR
    [UG_LABEL]
    IN ([Torre], [Cuit], [Empresa], [Departamento])
) as s

有人可以帮我吗?

谢谢.

推荐答案

您仍然可以使用PIVOT函数获取结果，但是由于要聚集varchar，因此必须使用max或min:

You can still use the PIVOT function to get the result but since you are aggregating a varchar you have to use either max or min:

SELECT *
FROM
(
  SELECT [c_id]
      ,[c_lname] as [Apellido]
      ,[c_fname] as [Nombre]
      ,[c_nick_name] as [documento]      
      ,[ut_text] 
      ,f.ug_label
  FROM [pegasys].[dbo].[cardholder] c
  inner join [pegasys].[dbo].[udftext] u on c.c_id = u.ut_cardholder_id 
  inner join [pegasys].[dbo].[udfgen] f on u.ut_udfgen_id = f.ug_id
) d  
PIVOT
(
    max(ut_text)
    FOR UG_LABEL IN ([Torre], [Cuit], [Empresa], [Departamento])
) p

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