如何使用xml显式生成带有元素和属性的xml

Question

我试图生成以下格式的xml：

<Root>
    <Domain>Abc</Domain>
    <Name>Xyz</Name>
    <Contents>
        <Content>
            <ID>1</ID>
            <Value>Test 1</Value>
            <Record ID="1">Test 1</Record>
        </Content>
        <Content>
            <ID>2</ID>
            <Value>Test 2</Value>
            <Record ID="2">Test 2</Record>
        </Content>
    </Contents>
</Root>

我的查询如下：

declare @TestTable table (ID int, Value varchar(100))

insert into @TestTable values (1,'Test 1')
insert into @TestTable values (2,'Test 2')

declare @Domain varchar(max)='Abc'
declare @Name varchar(max)='Xyz'

SELECT
1 AS Tag,
NULL AS Parent,
@Domain as 'Root!1!Domain!Element',
@Name as 'Root!1!Name!Element',
NULL as 'Contents!2!Element',
NULL as 'Content!3!ID!Element',
NULL as 'Content!3!Value!Element',
NULL as 'Content!3!Record!Element'

union

SELECT
2 AS Tag,
1 AS Parent,
NULL,NULL,NULL,NULL,NULL,NULL

union

select
3 as Tag,
2 as Parent,
NUll,NUll,NULL,
ID,Value,Value
from @TestTable

FOR XML EXPLICIT

我的查询没有完全产生记录标签，目前是

<Record>Test 2</Record>

应该是

<Record ID=2>Test 2</Record>

我尝试了所有可能性，但没有获得标签。谁能帮我解决这个问题。

Answer 1

我无法从xml显式获得预期的输出，相反，我使用了xml路径并获得了输出。这是我更新的查询

SELECT 
       @Domain "Domain",
       @Name "Name",
(
SELECT 
       ID  "ID",
       Value   "Value",
       (select 
        ID "@ID",
        Value  as "text()"      
        FOR XML PATH('Record'), ELEMENTS, TYPE )       
FROM   @TestTable
FOR XML PATH ('Content'), TYPE, ROOT('Contents')
)
FOR XML PATH ('Root')

欢迎您发布明确使用xml的修复程序。