Oracle: Spalten als Zeile (multiple rows as one column) LISTAGG

Direkt aus den Beispielen von Oracle 
 
SELECT deptno, LISTAGG(ename, ',') WITHIN GROUP (ORDER BY ename) AS employees
FROM   emp
GROUP BY deptno; 
 
ab 11g R2 .. damit für mich jetzt nutzbar. 

http://www.oracle-base.com/articles/misc/string-aggregation-techniques.php

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