CODEWITHSUNDEEP
sql-serverxmlt-sqljoin
Marian Zagoruiko
Marian Zagoruiko

Reputation: 1596

Join on data from XML in T-SQL

I have the following XML message:

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>'

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

How can I do this?

Upvotes: 7

Views: 24925

Answers (1)

Mikael Eriksson
Mikael Eriksson

Reputation: 138970

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')

Upvotes: 15

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