在 SQL Server 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 只列出一个附属机构时，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>

但是它已经将 Affiliation 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从属关系并将其添加到我的插入中？

Answer 1

请尝试以下解决方案。

主要的变化不是这一行：

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

如下：

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);