oracle - listagg DB链接问题

Question

对于以下查询，我只收到错误：

ORA-00923: 在 DBLINK 中未找到预期的 FROM 关键字。

select LISTAGG(SERVICE_ORDER, ', ')  WITHIN GROUP (ORDER BY SERVICE_ORDER) 
"service_order"
FROM TBL_DATA@TBL_REP

Answer 1

Works on 12c(12.1.0.2.0), too:

SELECT LISTAGG (SERVICE_ORDER, ', ') WITHIN GROUP (ORDER BY SERVICE_ORDER)
           "service_order"
  FROM (SELECT 'a' SERVICE_ORDER FROM DUAL
        UNION ALL
        SELECT 'b' SERVICE_ORDER FROM DUAL
        UNION ALL
        SELECT 'c' SERVICE_ORDER FROM DUAL)