拆分XML变量，连接并插入临时表XML列

Question

I have an XML variable that contains the following XML :

<Fruits>
  <Fruit>
    <Type>Apple</Type>
    <FruitID>1</FruitID>
    <MoreInfo>
      <Info Name="GreenApples" Value="3900" />
    </MoreInfo>
  </Fruit>
  <Fruit>
    <Type>Orange</Type>
    <FruitID>2</FruitID>
    <MoreInfo>
      <Info Name="Oranges" Value="1100" />
    </MoreInfo>
  </Fruit>
</Fruits>

I am trying to create a temp table that looks like that:

CREATE TABLE #XmlTable (
    email nvarchar(100),
    xmlNode XML
)

The output that I am aiming for is:

email | xmlNode

one@email.com | <Fruit><Type>Apple</Type><FruitID>1</FruitID><MoreInfo><Info Name="GreenApples" Value="3900" /></MoreInfo></Fruit>
two@email.com | <Fruit><Type>Orange</Type><FruitID>2</FruitID><MoreInfo><Info Name="Oranges" Value="1100" /></MoreInfo></Fruit>

The problem is that I don't know how to convert it to XML when I split it and insert it in the table.

I have the following SQL that is doing the job, but how do I convert it to XML?

INSERT INTO #XmlTable
SELECT  EOR.email, 
        xmlNode.Col.value('.', 'nvarchar(max)') AS XML
FROM @outputXML.nodes('/Fruits') xmlNode(Col)
CROSS APPLY @outputXML.nodes('/Fruits/Fruit/FruitID') xmlValue(i)
INNER JOIN #EmailsOfReceivers EOR
ON EOR.ID= xmlValue.i.value('.','nvarchar(max)')

It works fine, but of course the xmlNode column doesn't have the XML tags.

Answer 1

Here is one possible way :

INSERT INTO #XmlTable
SELECT  EOR.email, 
        fruit.x.query('.') AS XML
FROM @outputXML.nodes('/Fruits/Fruit') fruit(x)
INNER JOIN #EmailsOfReceivers EOR
ON EOR.ID = fruit.x.value('FruitID[1]','nvarchar(max)')

Fiddle demo

Basically, shred the XML on <Fruit> nodes, then you can use query() instead of value() to get the XML tags.

Side note: I'd return FruitID as int instead of nvarchar(max) , if possible.

Answer 2

You can use .query('.') for your xml column:

DECLARE @outputXML XML

SELECT @outputXML = '<Fruits>
  <Fruit>
    <Type>Apple</Type>
    <FruitID>1</FruitID>
    <MoreInfo>
      <Info Name="GreenApples" Value="3900" />
    </MoreInfo>
  </Fruit>
  <Fruit>
    <Type>Orange</Type>
    <FruitID>2</FruitID>
    <MoreInfo>
      <Info Name="Oranges" Value="1100" />
    </MoreInfo>
  </Fruit>
</Fruits>'

INSERT INTO #XmlTable
SELECT  EOR.email, 
        xmlNode.Col.query('.') AS MyXML
FROM @outputXML.nodes('/Fruits/Fruit') xmlNode(Col)
INNER JOIN #EmailsOfReceivers EOR
ON EOR.ID = xmlNode.Col.value('FruitID[1]','nvarchar(max)')