Sql server 如何将XML解析为列
我想解析这个Xml以得到以下结果。表的名称是SchoolRecordSql server 如何将XML解析为列,sql-server,xml,sql-server-2012,Sql Server,Xml,Sql Server 2012,我想解析这个Xml以得到以下结果。表的名称是SchoolRecord Name Answer School name 87f6c8bf-cafc-40fb-a082-ca9d5bfaf1e0 Course 2f23e1cb-181e-4af2-a9ec-3dd68530d1d5 Father NULL Mother NULL 我正在使用SQL Server 2012。这是我尝试过的
Name Answer
School name 87f6c8bf-cafc-40fb-a082-ca9d5bfaf1e0
Course 2f23e1cb-181e-4af2-a9ec-3dd68530d1d5
Father NULL
Mother NULL
我正在使用SQL Server 2012。这是我尝试过的,但没有成功
一,
二,
三,
我的结果
Name Answer
NULL NULL
NULL NULL
NULL NULL
NULL NULL
我的XML:
<data>
<School_Data>
<ControlGroup>
<UserDefinedControls>
<Control>
<ControlType>FIND</ControlType>
<Name>School name</Name>
<Answer>87f6c8bf-cafc-40fb-a082-ca9d5bfaf1e0</Answer>
</Control>
</UserDefinedControls>
<UserDefinedControls>
<Control>
<ControlType>FIND</ControlType>
<Name>Course</Name>
<Answer>2f23e1cb-181e-4af2-a9ec-3dd68530d1d5</Answer>
</Control>
</UserDefinedControls>
<UserDefinedControls>
<Control>
<ControlType>FIND</ControlType>
<Name>Father</Name>
<Answer />
</Control>
</UserDefinedControls>
<UserDefinedControls>
<Control>
<ControlType>FIND</ControlType>
<Name>Mother</Name>
<Answer />
</Control>
</UserDefinedControls>
</ControlGroup>
</School_Data>
</data>
我看到恶心提到的元素和属性名称是区分大小写的。下面是从每个控件返回名称和答案的示例:
SELECT
Control.value('Name[1]','varchar(max)' ) as Name,
Control.value('Answer[1]','varchar(max)' ) as Answer
FROM dbo.SchoolRecord S
CROSS APPLY S.userdefinedxml.nodes('/data/School_Data/ControlGroup/UserDefinedControls/Control') AS UserDefinedControls(Control);
XML区分大小写,因此请尝试使用数据,而不是现有的数据。e、 值'data/School_data/ControlGroup/UserDefinedControls/Control/Name[1],'varcharmax'作为名称,谢谢,我能猜出来。XML区分大小写。我把数据改成了数据。
Name Answer
NULL NULL
NULL NULL
NULL NULL
NULL NULL
<data>
<School_Data>
<ControlGroup>
<UserDefinedControls>
<Control>
<ControlType>FIND</ControlType>
<Name>School name</Name>
<Answer>87f6c8bf-cafc-40fb-a082-ca9d5bfaf1e0</Answer>
</Control>
</UserDefinedControls>
<UserDefinedControls>
<Control>
<ControlType>FIND</ControlType>
<Name>Course</Name>
<Answer>2f23e1cb-181e-4af2-a9ec-3dd68530d1d5</Answer>
</Control>
</UserDefinedControls>
<UserDefinedControls>
<Control>
<ControlType>FIND</ControlType>
<Name>Father</Name>
<Answer />
</Control>
</UserDefinedControls>
<UserDefinedControls>
<Control>
<ControlType>FIND</ControlType>
<Name>Mother</Name>
<Answer />
</Control>
</UserDefinedControls>
</ControlGroup>
</School_Data>
</data>
SELECT
Control.value('Name[1]','varchar(max)' ) as Name,
Control.value('Answer[1]','varchar(max)' ) as Answer
FROM dbo.SchoolRecord S
CROSS APPLY S.userdefinedxml.nodes('/data/School_Data/ControlGroup/UserDefinedControls/Control') AS UserDefinedControls(Control);