xml - TSQL 拆分 XML 节点

Question

如何查询如下所示的表:

DECLARE @test as table (
    [Id] int,
    [Changes] XML
    )

insert into @test VALUES (1,'<insert pk="1"/><insert pk="2"/><delete pk="1"/><delete pk="2"/>')
insert into @test VALUES (2,'<insert pk="3"/>')

要得到这个输出？

1, <insert pk="1"/>
1, <insert pk="2"/>
1, <delete pk="1"/>
1, <delete pk="2"/>
2, <insert pk="3"/>

Answer 1

尝试这样的事情:

SELECT 
    ID, 
    XmlChanges.query('.')
FROM
    @test
CROSS APPLY
    Changes.nodes('/*') AS Nodes(XmlChanges)

结果输出将是:

ID  (No column name)
1   <insert pk="1" />
1   <insert pk="2" />
1   <delete pk="1" />
1   <delete pk="2" />
2   <insert pk="3" />