在T-SQL中联接来自XML的数据 [英] Join on data from XML in T-SQL

问题描述

我有以下XML消息:

DECLARE @XML AS XML
SET @XML = 
'<Message>
<Changes>
    <Deleted>
        <ROW id="1" name="Nicole" surname="Bartlett" city="denver" balance="779.4663" dateOfBirth="1991-12-11T14:05:42.830" maritalStatus="S" />
        <ROW id="1" name="Nicole" surname="Bartlett" city="boston" balance="779.4663" dateOfBirth="1991-12-11T14:05:42.830" maritalStatus="S" />
    </Deleted>
    <Inserted>
        <ROW id="1" name="Nicole" surname="Bartlett" city="denver" balance="779.4663" dateOfBirth="1991-12-11T14:05:42.830" maritalStatus="S" />
        <ROW id="1" name="Nicole" surname="Bartlett" city="boston" balance="779.4663" dateOfBirth="1991-12-11T14:05:42.830" maritalStatus="S" />
    </Inserted>
</Changes>
</Message>'

我需要从此消息中选择数据并在id字段上加入另一个表.以下代码不起作用:

And I need to select data from this message and join another table on id field. The following code doesn't work:

SELECT T.c.value('./@id', 'int') as id, t.c.value('./@name', 'varchar(max)') as name 
FROM @XML.nodes('/Message/Changes/Deleted/ROW') T(c)
inner join other_table tbl
    on tbl.id = id

我该怎么做?

推荐答案

SELECT T.c.value('./@id', 'int') as id, t.c.value('./@name', 'varchar(max)') as name 
FROM @XML.nodes('/Message/Changes/Deleted/ROW') T(c)
inner join other_table tbl
    on tbl.id = T.c.value('./@id', 'int')

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