使用TSQL和For XML Path生成XML输出

Question

我有3个临时表，它们全部由3个独立的查询填充，并以1对1的关系相互关联，这些表是DemographicRecord，GPRegistrationDetails，MaternityBookingDetails。 所有3列之间的列均不同，但每个列均共享PatientID键。 我的问题是使用XML Path如何按照以下格式从3个相关的数据集中输出XML。

    <MAT001MothersDemographics>
        <LocalPatientIdMother>BLANKED</LocalPatientIdMother>
        <OrgCodeLocalPatientIdMother>BLANKED</OrgCodeLocalPatientIdMother>
        <OrgCodeRes>BLANKED</OrgCodeRes>
        <NHSNumberMother>BLANKED</NHSNumberMother>
        <NHSNumberStatusMother>BLANKED</NHSNumberStatusMother>
        <PersonBirthDateMother>BLANKED</PersonBirthDateMother>
        <Postcode>BLANKED</Postcode>
        <EthnicCategoryMother>BLANKED</EthnicCategoryMother>
        <PersonDeathDateTimeMother>BLANKED</PersonDeathDateTimeMother>
        <MAT003GPPracticeRegistration>
            <LocalPatientIdMother>BLANKED</LocalPatientIdMother>
            <OrgCodeGMPMother>BLANKED</OrgCodeGMPMother>
            <StartDateGMPRegistration>BLANKED</StartDateGMPRegistration>
            <EndDateGMPRegistration>BLANKED</EndDateGMPRegistration>
            <OrgCodeCommissioner>BLANKED</OrgCodeCommissioner>
        </MAT003GPPracticeRegistration>
        <MAT101BookingAppointmentDetails>
            <AntenatalAppDate>BLANKED</AntenatalAppDate>
            <LocalPatientIdMother>BLANKED</LocalPatientIdMother>
            <EDDAgreed>BLANKED</EDDAgreed>
            <EDDMethodAgreed>BLANKED</EDDMethodAgreed>
            <PregnancyFirstContactDate>BLANKED</PregnancyFirstContactDate>
            <PregnancyFirstContactCareProfessionalType>BLANKED</PregnancyFirstContactCareProfessionalType>
            <LastMenstrualPeriodDate>BLANKED</LastMenstrualPeriodDate>
            <PhysicalDisabilityStatusIndMother>BLANKED</PhysicalDisabilityStatusIndMother>
            <FirstLanguageEnglishIndMother>BLANKED</FirstLanguageEnglishIndMother>
            <EmploymentStatusMother>BLANKED</EmploymentStatusMother>
            <SupportStatusMother>BLANKED</SupportStatusMother>
            <EmploymentStatusPartner>BLANKED</EmploymentStatusPartner>
            <PreviousCaesareanSections>BLANKED</PreviousCaesareanSections>
            <PreviousLiveBirths>BLANKED</PreviousLiveBirths>
            <PreviousStillBirths>BLANKED</PreviousStillBirths>
            <PreviousLossesLessThan24Weeks>BLANKED</PreviousLossesLessThan24Weeks>
            <SubstanceUseStatus>BLANKED</SubstanceUseStatus>
            <SmokingStatus>BLANKED</SmokingStatus>
            <CigarettesPerDay>BLANKED</CigarettesPerDay>
            <AlcoholUnitsPerWeek>BLANKED</AlcoholUnitsPerWeek>
            <FolicAcidSupplement>BLANKED</FolicAcidSupplement>
            <MHPredictionDetectionIndMother>BLANKED</MHPredictionDetectionIndMother>
            <PersonWeight>BLANKED</PersonWeight>
            <PersonHeight>BLANKED</PersonHeight>
            <ComplexSocialFactorsInd>BLANKED</ComplexSocialFactorsInd>
        </MAT101BookingAppointmentDetails>
</MAT001MothersDemographics>

到目前为止，我已经尝试过：

SELECT
(SELECT * FROM #temp2 
JOIN #temp ON #temp2.LocalPatientIdMother = #temp.LocalPatientIdMother
JOIN #temp3 ON #temp2.LocalPatientIdMother = #temp3.LocalPatientIdMother
FOR XML PATH('MAT001'), TYPE) AS 'MAT001MothersDemographics' 
FOR XML PATH(''), ROOT('root')

但这不是正确的形状，有人可以建议我如何有效使用TSQL和FOR XML PATH，以便生成上述输出吗？ 目前，在显示其他数据之前，我正在为每条记录重复人口统计信息吗？

    <MAT001MothersDemographics>
     <MAT001>
      <LocalPatientIdMother>BLANKED</LocalPatientIdMother>
      <OrgCodeLocalPatientIdMother>BLANKED</OrgCodeLocalPatientIdMother>
      <OrgCodeRes>BLANKED</OrgCodeRes>
      <NHSNumberMother>BLANKED</NHSNumberMother>
      <NHSNumberStatusMother>BLANKED</NHSNumberStatusMother>
      <PersonBirthDateMother>BLANKED</PersonBirthDateMother>
      <Postcode>BLANKED</Postcode>
      <EthnicCategoryMother>BLANKED</EthnicCategoryMother>
      <PersonDeathDateTimeMother>BLANKED</PersonDeathDateTimeMother>
      </MAT001>
    </MAT001MothersDemographics>
    <MAT001MothersDemographics>
     <MAT001>
      <LocalPatientIdMother>BLANKED</LocalPatientIdMother>
      <OrgCodeLocalPatientIdMother>BLANKED</OrgCodeLocalPatientIdMother>
      <OrgCodeRes>BLANKED</OrgCodeRes>
      <NHSNumberMother>BLANKED</NHSNumberMother>
      <NHSNumberStatusMother>BLANKED</NHSNumberStatusMother>
      <PersonBirthDateMother>BLANKED</PersonBirthDateMother>
      <Postcode>BLANKED</Postcode>
      <EthnicCategoryMother>BLANKED</EthnicCategoryMother>
      <PersonDeathDateTimeMother>BLANKED</PersonDeathDateTimeMother>
      </MAT001>
    </MAT001MothersDemographics>

非常感谢

Answer 1

我必须承认，您的问题还不清楚...您发布了很多不需要的细节（例如大型XML），但没有提供表结构和示例数据之类的必要信息。 为了将来，请阅读如何提出一个好的SQL问题以及如何创建MCVE

但是-我神奇的水晶球从清洁中回来了！ -我尝试一下：

SELECT t.*
      ,(
         SELECT * 
         FROM #temp2 AS t2 
         WHERE t.LocalPatientIdMother=t2.LocalPatientIdMother
         FOR XML PATH('MAT003GPPracticeRegistration'),TYPE
       ) AS [*]
      ,(
         SELECT * 
         FROM #temp3 AS t3 
         WHERE t.LocalPatientIdMother=t3.LocalPatientIdMother
         FOR XML PATH('MAT101BookingAppointmentDetail'),TYPE
       ) AS [*]
FROM #temp AS t
FOR XML PATH('MAT001MothersDemographics');

这将返回#temp1所有列，并将嵌套#temp2和#temp3的相关行。 这是基于这样的假设：您在每个表中仅具有给定ID的一条记录...