如何在SQL Server中将XML文件读入表格格式

时间:2017-03-21 20:29:59

标签: sql sql-server xml select transform

我经历了不同的搜索,发现了很多类似的帖子,其中给出了将XML转换为Tabular格式的解决方案。 下面是单行I列附加的示例数据,以及我到目前为止所做的基本查询。

<DS_systeminfo>
<Systeminfo>
  <Property>CurrentLanguage</Property>
  <Property_value>en-US</Property_value>
</Systeminfo>
<Systeminfo>
  <Property>Manufacturer</Property>
  <Property_value>LENOVO</Property_value>
</Systeminfo>
<Systeminfo>
  <Property>SerialNumber</Property>
  <Property_value>789654</Property_value>
</Systeminfo>
<Systeminfo>
  <Property>Caption</Property>
  <Property_value>ATTT</Property_value>
</Systeminfo>   
  <Property>Manufacturer</Property>
  <Property_value>LENOVO</Property_value>
</Systeminfo>  
<Systeminfo>
  <Property>WindowsDirectory</Property>
  <Property_value>C:\WINDOWS</Property_value>
</Systeminfo>

并且query位于以下位置:

SELECT SerialNumber, 
Cast(SystemInfoXML AS XML).value('(/DS_systeminfo/Systeminfo/Property)[1]', 'varchar(100)') AS Caption,
Cast(SystemInfoXML AS XML).value('(/DS_systeminfo/Systeminfo/Property_value)[1]', 'varchar(100)') AS Value
FROM TerminalsDetail

这只取得第一个节点的值,我想在一个查询中动态选择所有节点,可能正在使用cursor

给出的数据是单行的,我有100多行,我需要将其转换为表格格式。

任何建议都会有所帮助。

2 个答案:

答案 0 :(得分:3)

Declare @YourTable table (ID int,SystemInfoXML xml)
Insert Into @YourTable values
(1,'<DS_systeminfo><Systeminfo><Property>CurrentLanguage</Property><Property_value>en-US</Property_value></Systeminfo><Systeminfo><Property>Manufacturer</Property><Property_value>LENOVO</Property_value></Systeminfo><Systeminfo><Property>SerialNumber</Property><Property_value>789654</Property_value></Systeminfo><Systeminfo><Property>Caption</Property><Property_value>ATTT</Property_value></Systeminfo><Systeminfo><Property>Manufacturer</Property><Property_value>LENOVO</Property_value></Systeminfo><Systeminfo><Property>WindowsDirectory</Property><Property_value>C:\WINDOWS</Property_value></Systeminfo></DS_systeminfo>')

Select A.ID
      ,B.*
 From  @YourTable A
 Cross Apply (
                Select [Caption] = f.n.value('(Property)[1]','varchar(50)') 
                      ,[Value]   = f.n.value('(Property_value)[1]','varchar(50)') 
                 From  A.SystemInfoXML.nodes('DS_systeminfo') t(n)
                 Cross Apply t.n.nodes('Systeminfo') f(n)
             ) B

返回

ID  Caption           Value
1   CurrentLanguage   en-US
1   Manufacturer      LENOVO
1   SerialNumber      789654
1   Caption           ATTT
1   Manufacturer      LENOVO
1   WindowsDirectory  C:\WINDOWS

答案 1 :(得分:1)

这样的事情:

WITH the_data AS (
  SELECT CAST(SystemInfoXML AS XML) AS XML_DATA
  FROM TerminalsDetail
)
SELECT 
  XML_DATA.query('/DS_systeminfo/Systeminfo/Property[1]') as Caption,
  XML_DATA.query('/DS_systeminfo/Systeminfo/Property_value[1]') as Value
FROM cte

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