Oracle - 可以使用 concat 进行子查询吗?
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Oracle - Subquery with concat possible?
提问by opHASnoNAME
is it possible to concat the result of an subquery with oracle?
是否可以使用oracle连接子查询的结果?
if this subquery for an view:
如果此视图的子查询:
(SELECT s.name
FROM
app_shared_servers ass
LEFT JOIN servers s
ON (s.srv_id = ass.srv_id) WHERE ass.app_id = a.APP_ID) SHARED_SERVERS
Wich returns a list of servernames associated with some kind of system. I need them to display like "Server, Server2, Server3" inside the view.
Wich 返回与某种系统相关联的服务器名称列表。我需要它们在视图中显示为“服务器、服务器 2、服务器 3”。
Any ideas?
有任何想法吗?
采纳答案by Vincent Malgrat
this looks like a string aggregation question, see these questions on SO for a description of available methods:
这看起来像一个字符串聚合问题,有关可用方法的描述,请参阅 SO 上的这些问题: