如何将XML数据转换为SQL Server表

I have a XML data like this :

我有这样的XML数据:

<root>
 <log realm="ABC" at="Wed Oct 15 00:00:02 2014.211" lifespan="2279ms">
  <receive>
    <isomsg direction="IN">
      <header>6000911384</header>
      <field id="0" value="0800"/>
      <field id="3" value="980000"/>
      <field id="11" value="000852"/>
    </isomsg>
  </receive>
</log>
</root>

how can I transform that XML data into table like this :

如何将XML数据转换成这样的表:

    AT         |lifespan|direction |ID |Value 
---------------------------------------------
Wed Oct 15 2014|2279ms  |in        |0  |0800
Wed Oct 15 2014|2279ms  |in        |3  |980000
Wed Oct 15 2014|2279ms  |in        |11 |000852

2 个解决方案

#1

This would be a lot easier than @Nick's answer, since it only needs one .nodes() call instead of three nested ones...

这比@Nick的答案要简单得多，因为它只需要一个.nodes()调用，而不是三个嵌套的……

DECLARE @input XML = '<root>
 <log realm="ABC" at="Wed Oct 15 00:00:02 2014.211" lifespan="2279ms">
  <receive>
    <isomsg direction="IN">
      <header>6000911384</header>
      <field id="0" value="0800"/>
      <field id="3" value="980000"/>
      <field id="11" value="000852"/>
    </isomsg>
  </receive>
</log>
</root>'

SELECT
    At = xc.value('../../../@at', 'varchar(50)'),
    Lifespan = xc.value('../../../@lifespan', 'varchar(25)'),
    Direction = xc.value('../@direction', 'varchar(10)'),
    ID = XC.value('@id', 'int'),
    Value = xc.value('@value', 'varchar(25)')
FROM
    @Input.nodes('/root/log/receive/isomsg/field') AS XT(XC)

The call to @Input.nodes basically returns a "virtual" table of XML fragments, representing each of the <field> XML elements. By using the .. we can also navigate "up the" XML hierarchy in the original document to access the <isomsg> and <log> elements and grab attribute values from those

@Input的电话。节点基本上返回一个“虚拟”XML片段表，表示每个 XML元素。通过使用. .我们还可以在原始文档中“向上”导航XML层次结构，以访问< isosg >和元素并从中获取属性值

#2

Here is how I did it (although there are several ways).

我是这样做的(尽管有几种方法)。

WITH xmlData AS (
SELECT CAST('<root>
 <log realm="ABC" at="Wed Oct 15 00:00:02 2014.211" lifespan="2279ms">
  <receive>
    <isomsg direction="IN">
      <header>6000911384</header>
      <field id="0" value="0800"/>
      <field id="3" value="980000"/>
      <field id="11" value="000852"/>
    </isomsg>
  </receive>
</log>
</root>' AS XML) as xmlData)
SELECT xmlData, logs.x.value('(@at)[1]','varchar(50)') as 'Element1', logs.x.value('(@lifespan)[1]','varchar(50)') as 'Element2', ismsgs.logs.value('(@direction)[1]','varchar(50)') as 'Element3', fields.ismsgs.value('(@value)[1]','varchar(50)') as 'Element4'
FROM xmlData x
CROSS APPLY xmlData.nodes('root/log') logs(x)   
CROSS APPLY xmlData.nodes('root/log/receive/isomsg') ismsgs(logs)
CROSS APPLY xmlData.nodes('root/log/receive/isomsg/field') fields(ismsgs)

#1