I would like to know how to extract multiple values from a single XML row, the problem is that this XML value somethimes have duplicate (name, id, email) tag childs, for example:
<foo>
<name>
Dacely Lara Camilo
</name>
<id>
001-1942098-2
</id>
<email>
myuncletouchme@gmail.com
</email>
</foo>
<foo>
<name>
Alba Elvira Castro
</name>
<id>
001-0327959-2
</id>
<email>
4doorsmorehorse@hotmail.com
</email>
</foo>
Or somethimes the data in that column can be like this
<foo>
<name>
Nelson Antonio Jimenez
</name>
<id>
001-0329459-3
</id>
<email>
gsucastillo@tem.com
</email>
</foo>
<foo>
<name>
Emelinda Serrano
</name>
<id>
001-0261732-4
</id>
<email>
gucastillo@tem.com
</email>
</foo>
<foo>
<name>
Nelson Antonio Jimenez
</name>
<id>
001-0329259-3
</id>
<email>
gucastillo@tem.com
</email>
</foo>
<foo>
<name>
Emelinda Serrano
</name>
<id>
001-0268332-4
</id>
<email>
gucastillo@tem.com
</email>
</foo>
And I whant all of then to be transpose to a single row just like this
My current code just extract the first pair, if it can help,
WITH BASEDATA (ID, SIGNATURE, X) AS (
SELECT TOP 50
A.ID_SIGNATURE,
A.SIGNATURE,
A.XML
FROM DWH.DIM_CORE_SIGNATURE A
)SELECT
ID,
A.value('(id)[1]', 'nvarchar(max)') AS ID_SIGNATURE,
A.value('(name)[1]', 'nvarchar(max)') AS NAME,
A.value('(email)[1]', 'nvarchar(max)') AS EMAIL
FROM BASEDATA
CROSS APPLY X.nodes('//foo') AS SIGNATURE(A)
Notable points:
.nodes('/foo')
method has a better, more performant XPath expression. .value('(id/text())[1]',...
for the same reason.nvarchar(max)
across the board.SQL
-- DDL and sample data population, start
DECLARE @tbl TABLE (ID INT IDENTITY PRIMARY KEY, xmldata XML);
INSERT INTO @tbl (xmldata) VALUES
(N'<foo>
<name>Dacely Lara Camilo</name>
<id>001-1942098-2</id>
<email>myuncletouchme@gmail.com</email>
</foo>
<foo>
<name>Alba Elvira Castro</name>
<id>001-0327959-2</id>
<email>4doorsmorehorse@hotmail.com</email>
</foo>')
, (N'<foo>
<name>Nelson Antonio Jimenez</name>
<id>001-0329459-3</id>
<email>gsucastillo@tem.com</email>
</foo>
<foo>
<name>Emelinda Serrano</name>
<id>001-0261732-4</id>
<email>gucastillo@tem.com</email>
</foo>
<foo>
<name>Nelson Antonio Jimenez</name>
<id>001-0329259-3</id>
<email>gucastillo@tem.com</email>
</foo>
<foo>
<name>Emelinda Serrano</name>
<id>001-0268332-4</id>
<email>gucastillo@tem.com</email>
</foo>');
-- DDL and sample data population, end
SELECT ID,
c.value('(id/text())[1]', 'char(13)') AS ID_SIGNATURE,
c.value('(name/text())[1]', 'nvarchar(30)') AS NAME,
c.value('(email/text())[1]', 'nvarchar(128)') AS EMAIL
FROM @tbl
CROSS APPLY xmldata.nodes('/foo') AS t(c);
Output
+----+---------------+----------------------+-----------------------------+
| ID | ID_SIGNATURE | NAME | EMAIL |
+----+---------------+----------------------+-----------------------------+
| 1 | 001-1942098-2 | Dacely Lara Camilo | myuncletouchme@gmail.com |
| 1 | 001-0327959-2 | Alba Elvira Castro | 4doorsmorehorse@hotmail.com |
| 2 | 001-0329459-3 | Nelson Antonio Jimen | gsucastillo@tem.com |
| 2 | 001-0261732-4 | Emelinda Serrano | gucastillo@tem.com |
| 2 | 001-0329259-3 | Nelson Antonio Jimen | gucastillo@tem.com |
| 2 | 001-0268332-4 | Emelinda Serrano | gucastillo@tem.com |
+----+---------------+----------------------+-----------------------------+
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