从XML数据中选择查询

Question

我想从XML数据中获取结果，但只获取第一个节点的值。

create table #temp(xmlString nvarchar(max)) 
insert into #temp (xmlString) values 
('<?xml version="1.0" ?><response status = "ERROR"> 
<error>Error1</error> 
<error>Error2</error> 
</response>') 

我想要的结果：

Error1, Error2 

请帮助。 感谢

Answer 1

select 
    x.c.value('.', 'nvarchar(128)') as value 
from (select cast(xmlString as xml) as data from temp) as t 
    outer apply t.data.nodes('/response/error') as x(c) 

SQL FIDDLE EXAMPLE

Answer 2

正确答案

select STUFF((select ',' + x.c.value('.', 'nvarchar(max)') 
from (select cast(xmlString as xml) as data from #temp) 
as t outer apply t.data.nodes('/response/error') 
as x(c)for xml path('')), 1, 1, '') as Errors