SQL Server -XML节点不返回多个记录

Question

我试图让我的头轮SQL，XML节点和交叉应用程序，我会认为下面的代码将返回3行数据，而是我只得到一个。我曾经想过使用Cross应用将查询连接回本身会为我解决这个问题。

有人能告诉我我做错了什么吗？

在此先感谢

丹

DECLARE @XML AS XML; 

SELECT @XML = ('<Deal deal_id="821"> 
    <Application_owner>me</Application_owner> 
    <Deal_files> 
    <File>file1.doc</File> 
    <File>file2.pdf</File> 
    <File>file3.xcl</File> 
    </Deal_files> 
</Deal> 
') 

select 
    t.n.value('@deal_id', 'int') as [ID], 
    f.n.value('(File)[1]','varchar(50)') as [FILENAME] 
from 
    @XML.nodes('Deal') t(n) 
cross apply 
    t.n.nodes('Deal_files') f(n) 

Answer 1

你接近

DECLARE @XML AS XML; 

SELECT @XML = ('<Deal deal_id="821"> 
    <Application_owner>me</Application_owner> 
    <Deal_files> 
    <File>file1.doc</File> 
    <File>file2.pdf</File> 
    <File>file3.xcl</File> 
    </Deal_files> 
</Deal> 
' 
) 

Select 
    ID = t.n.value('@deal_id', 'int'), 
    FileName = f.n.value('(.)[1]','varchar(50)') 
From 
    @XML.nodes('Deal') t(n) 
Cross Apply 
    t.n.nodes('Deal_files/*') f(n) 

返回

ID FileName 
-------------- 
821 file1.doc 
821 file2.pdf 
821 file3.xcl