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SQL Server – 为xml列返回xml子节点

发布时间:2020-05-25 12:39:46 所属栏目:MsSql 来源:互联网
导读:给定表T列: ID UNIQUEIDENTIFIERCreatedDate DATETIMEXmlData XML XmlData的结构如下: application details firstname=first lastname=last statementstatement/statement /details edu

给定表T列:

ID UNIQUEIDENTIFIER
CreatedDate DATETIME
XmlData XML

XmlData的结构如下:

<application>
    <details firstname="first" lastname="last">
        <statement>statement</statement>
    </details>
    <educationHistory>
        <education subject="subject1" />
        <education subject="subject2" />
    </educationHistory>
    <experienceHistory>
        <examiningExperienceHistory>
            <examiningExperience module="module1" />
            <examiningExperience module="module2" />
        </examiningExperienceHistory>
        <teachingExperienceHistory>
            <teachingExperience module="module1" />
            <teachingExperience module="module2" />
        </teachingExperienceHistory>
    </experienceHistory>
</application>

我需要像这样返回一个提取物:

ID Date       FirstName LastName Education    ExaminingExp TeachingExp
-----------------------------------------------------------------------
1  02-10-2012 First     Last     <xmlextract> <xmlextract> <xmlextract>

到目前为止我有:

SELECT ID,CreatedDate [Date],XmlData.value('(application/details/@firstname)[1]','varchar(max)') [FirstName],XmlData.value('(application/details/@lastname)[1]','varchar(max)') [LastName]
FROM T

我在最后三列中苦苦挣扎.对于每个记录,我需要列出教学/考试经验和教育.有人可以帮忙吗?

解决方法

使用.query来提取xml.

例如

select 
XmlData.query('/application/educationHistory/*'),XmlData.query('/application/experienceHistory/examiningExperienceHistory/*'),XmlData.query('/application/experienceHistory/teachingExperienceHistory/*')

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