Group by Concat Teradata

Question

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'

I would like to obtain this result:

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

On a sidenote: there is no column indicating an order, so you may just as well end up with 'by hello' and '9 city hi'. — Thorsten Kettner, Sep 08 '17 at 15:08

score 11 · Answer 1 · answered Sep 08 '17 at 14:53

11

You can try using xmlagg

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

answered Sep 08 '17 at 14:53

Srini V

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Group by Concat Teradata

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