由 Concat Teradata 分组 [英] Group by Concat Teradata

问题描述

我的表有问题，我想使用 group by 来连接字符串字段.我这里有这种情况:

I have a problem with a table, I would like to concat a string field using a group by. I have this situation here:

USER | TEXT
A    | 'hello'
A    | 'by'
B    | 'hi'
B    | '9'
B    | 'city'

我想得到这个结果:

USER | TEXT
A    | 'hello by'
B    | 'hi 9 city'

推荐答案

可以尝试使用 xmlagg

You can try using xmlagg

SELECT
   User
  ,TRIM(TRAILING ' ' FROM (XMLAGG(TRIM(text)|| ','
                           ORDER BY ColumnPosition) (VARCHAR(1000))))
FROM table
GROUP BY 1

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