在 SQL 服务器存储过程中解析 XML

Question

我有

INSERT INTO [PubMed.Author] (pmid, ValidYN, LastName, FirstName, ForeName, Suffix, Initials, Affiliation)
    SELECT
        pmid, 
        nref.value('@ValidYN', 'varchar(max)') ValidYN, 
        nref.value('LastName[1]', 'varchar(max)') LastName, 
        nref.value('FirstName[1]', 'varchar(max)') FirstName,
        nref.value('ForeName[1]', 'varchar(max)') ForeName,
        nref.value('Suffix[1]', 'varchar(max)') Suffix,
        nref.value('Initials[1]', 'varchar(max)') Initials,
        nref.value('Affiliation[1]', 'varchar(max)') Affiliation
    FROM
        [Publication.PubMed.XML] 
    CROSS APPLY
        XMLData.nodes('//AuthorList/Author') AS R(nref)
    WHERE
        pmid = @pmid

当 PubMed 只列出一个隶属关系时，它曾经工作得很好

<Author ValidYN="Y">
    <LastName>Smith</LastName>
    <ForeName>John</ForeName>
    <Initials>J</Initials>
    <Affiliation>Department of Medicine, XYZ, NY USA; The Stony Brook Cancer Center, Stony Brook, NY 
11794, USA.</Affiliation>  
</Author>

但是它已将附属关系更改为多节点

<Author ValidYN="Y">
    <LastName>Smith</LastName>
    <ForeName>John</ForeName>
    <Initials>J</Initials>
    <AffiliationInfo> 
        <Affiliation>Department of Medicine, XYZ, NY USA; </Affiliation> 
    </AffiliationInfo>
    <AffiliationInfo>
        <Affiliation>The Stony Brook Cancer Center, Stony Brook, NY 11794, USA.</Affiliation>  
   </AffiliationInfo>
</Author>

我的问题是如何更改我的代码以连接所有关联并将其添加到我的插入内容中？

Answer 1

请尝试以下解决方案。

主要的变化是代替这一行：

nref.value('Affiliation[1]','varchar(max)') Affiliation

会变成这样：

nref.query('data(AffiliationInfo/Affiliation/text())').value('.','varchar(max)') Affiliation

SQL

DECLARE @xml XML = 
N'<Author ValidYN="Y">
    <LastName>Smith</LastName>
    <FirstName>John</FirstName>
    <Initials>J</Initials>
    <AffiliationInfo>
        <Affiliation>Department of Medicine, XYZ, NY USA;</Affiliation>
    </AffiliationInfo>
    <AffiliationInfo>
        <Affiliation>The Stony Brook Cancer Center, Stony Brook, NY 11794, USA.</Affiliation>
   </AffiliationInfo>
</Author>';

SELECT nref.value('@ValidYN','varchar(max)') AS ValidYN
    , nref.value('(LastName/text())[1]','varchar(max)') AS LastName
    , nref.value('(FirstName/text())[1]','varchar(max)') AS FirstName
    , nref.value('(ForeName/text())[1]','varchar(max)') AS ForeName
    , nref.value('(Suffix/text())[1]','varchar(max)') AS Suffix
    , nref.value('(Initials/text())[1]','varchar(max)') AS Initials
    , nref.query('data(AffiliationInfo/Affiliation/text())').value('.','varchar(max)') AS Affiliation
FROM @xml.nodes('/Author') AS t(nref);

SQL#2

SELECT nref.value('@ValidYN','varchar(max)') AS ValidYN
    , nref.value('(LastName/text())[1]','varchar(max)') AS LastName
    , nref.value('(FirstName/text())[1]','varchar(max)') AS FirstName
    , nref.value('(ForeName/text())[1]','varchar(max)') AS ForeName
    , nref.value('(Suffix/text())[1]','varchar(max)') AS Suffix
    , nref.value('(Initials/text())[1]','varchar(max)') AS Initials
    , nref.query('
        for $r in AffiliationInfo/Affiliation/text()
        let $token := concat("[", $r, "]")
        return $token
        ').value('text()[1]','varchar(max)')AS Affiliation
FROM @xml.nodes('/Author') AS t(nref);

在 SQL 服务器存储过程中解析 XML

Parse XML in a SQL Server stored procedure

xml

sql-server-2016