为在SQL Server中没有子节点的每个XML节点创建一列

Question

I am trying to query an xml file in SSMS to create a table that consists of the first row being the list of all xml nodes, and the next row containing all of its values. The xml data will have a repeating node that will create a new row for each repeating node with that name. Here's an example of the xml data:

<Tests>
<TestAnswers>
    <Question1>
        <Name>Example</Name>
        <Age>23</Age>
        <Question1B>
            <Title>Singer</Title>
        </Questions1B>
    </Question1>
    <Question2>
        <Car></Car>
        <Model>Model 1</Model>
        <Question2B>
            <Year>1986</Year>
            <Manufactured></Manufactured>
        </Questions2B>
    </Question2>
</TestAnswers>
<TestAnswers>
    <Question1>
        <Name>Santa</Name>
        <Age></Age>
        <Question1B>
            <Title>Writer</Title>
        </Questions1B>
    </Question1>
    <Question2>
        <Car>This car</Car>
        <Model>Model2</Model>
        <Question2B>
            <Year></Year>
            <Manufactured></Manufactured>
        </Questions2B>
    </Question2>
</TestAnswers>
</Tests>

The table I want to create in SQL Server should look something like:

   |    Name     | Age |    Title    |    Car    |    Model    |   Year   |    Manufactured    |
-------------------------------------------------------------------------------------------------
 1 | Example     | 23  | Singer      |           | Model 1     | 1986     |                    |
 2 | Santa       |     | Writer      | This Car  | Model2      |          |                    |

There would be more rows that get created, as the xml file gets bigger with more information. I don't want to create columns for xml nodes that contain child nodes.

How can a write a query to perform this task?

UPDATE

New XML use case, where there there will be two columns made with duplicate nodes:

<Tests>
<TestAnswers>
    <Question1>
        <Name>Example</Name>
        <Age>23</Age>
        <Other>Other Text</Other>
        <Question1B>
            <Title>Singer</Title>
            <Other></Other>
        </Question1B>
    </Question1>
    <Question2>
        <Car></Car>
        <Model>Model 1</Model>
        <Question2B>
            <Year>1986</Year>
            <Manufactured></Manufactured>
        </Question2B>
    </Question2>
</TestAnswers>
<TestAnswers>
    <Question1>
        <Name>Santa</Name>
        <Age></Age>
        <Other></Other>
        <Question1B>
            <Title>Writer</Title>
            <Other>Text</Other>
        </Question1B>
    </Question1>
    <Question2>
        <Car>This car</Car>
        <Model>Model2</Model>
        <Question2B>
            <Year></Year>
            <Manufactured></Manufactured>
        </Question2B>
    </Question2>
</TestAnswers>
</Tests>

Answer 1

Is this XML under your control?

Besides the fact, that it is invalid (the closing tags for your sub-elements <Question2B> are in plural <Questions2B> ) there are severe design flaws...

Most obvious is the name numbering like <Question1> and <Question2> ...

And please provide some more details, if the content may vary too. You are writing would be more rows with more information . Do you mean more of the same or might there be other columns or even other structures too?

Besides all this here are some general approaches to show the principles:

DECLARE @xml XML=
N'<Tests>
<TestAnswers>
    <Question1>
        <Name>Example</Name>
        <Age>23</Age>
        <Question1B>
            <Title>Singer</Title>
        </Question1B>
    </Question1>
    <Question2>
        <Car></Car>
        <Model>Model 1</Model>
        <Question2B>
            <Year>1986</Year>
            <Manufactured></Manufactured>
        </Question2B>
    </Question2>
</TestAnswers>
<TestAnswers>
    <Question1>
        <Name>Santa</Name>
        <Age></Age>
        <Question1B>
            <Title>Writer</Title>
        </Question1B>
    </Question1>
    <Question2>
        <Car>This car</Car>
        <Model>Model2</Model>
        <Question2B>
            <Year></Year>
            <Manufactured></Manufactured>
        </Question2B>
    </Question2>
</TestAnswers>
</Tests>';

--this will return all answers row-by-row

SELECT a.query('.')
FROM @xml.nodes('/Tests/TestAnswers') A(a);

--this will return all questions row-by-row

SELECT q.query('.')
FROM @xml.nodes('/Tests/TestAnswers') A(a)
OUTER APPLY a.nodes('*') B(q);

--this will return all nodes with an own text row-by-row

SELECT nd.query('.')
FROM @xml.nodes('/Tests/TestAnswers') A(a)
OUTER APPLY a.nodes('*') B(q)
OUTER APPLY q.nodes('//*[text()]') C(nd);

UPDATE

Try this to get a list, then use PIVOT per aInx to get your tabular format:

WITH Answers AS
(
    SELECT ROW_NUMBER() OVER(ORDER BY (SELECT NULL)) AS aInx
          ,a.query('.') AS a
    FROM @xml.nodes('/Tests/TestAnswers') A(a)
)
,Questions AS
(
    SELECT aInx
          ,q.query('.') AS q
    FROM Answers
    OUTER APPLY a.nodes('*') B(q)
)
SELECT aInx
      ,nd.value('local-name(.)','nvarchar(max)') AS NodeName
      ,nd.value('text()[1]','nvarchar(max)') AS NodeValue
FROM Questions
OUTER APPLY q.nodes('//*[text()]') C(nd);