Import XML into SQL Server, split into multiple rows - sql

Question

I have a XML file, which I need to import into a SQL Server database. The XML file is build like this:
<report>
<deltagere>
<deltager>
<number>142555267</number>
<date>29-12-2006</date>
<name>
<name>
<from>01-05-2000</from>
<to>01-01-2003</to>
<text>foo</text>
</name>
<name>
<from>01-01-2003</from>
<to>29-12-2006</to>
<text>bzz</text>
</name>
</name>
<information>
<deltagertype>person</deltagertype>
<leader>John Smith</leader>
<status>Active</status>
</information>
<role>Responsible</role>
</deltager>
<deltager>
<number>4000134982</number>
<date>05-12-2007</date>
<name>
<name>
<from>07-07-2007</from>
<to>05-12-2007</to>
<text>bar</text>
</name>
</name>
<information>
<deltagertype>person</deltagertype>
<leader>Wolfgang Smith</leader>
<status>Active</status>
</information>
<role>Responsible</role>
</deltager>
...
</deltagere>
</report>
As you can see the name attribute can hold multiple names. I have managed to import the XML into my database, but only with the first name attribute.
The code I have written so far is:
DECLARE #XmlFile XML
SELECT #XmlFile = BulkColumn
FROM OPENROWSET(BULK 'C:\input.xml', SINGLE_BLOB) x;
INSERT INTO dbo.deltagere(number, dato, nameFrom, nameTo, nameText, deltagertype, leader, deltagerStatus, deltagerRole)
SELECT
number = deltagere.value('(number)[1]', 'bigint'),
dato = deltagere.value('(date)[1]', 'varchar(10)'),
nameFrom = deltagere.value('(name/name/from)[1]', 'varchar(10)'),
nameTo = deltagere.value('(name/name/to)[1]', 'varchar(10)'),
nameText = deltagere.value('(name/name/text)[1]', 'varchar(30)'),
deltagertype = deltagere.value('(information/deltagertype)[1]', 'varchar(20)'),
leader = deltagere.value('(information/leader)[1]', 'varchar(50)'),
deltagerStatus = deltagere.value('(information/status)[1]', 'varchar(50)'),
deltagerRole = deltagere.value('(role)[1]', 'varchar(50)')
FROM
#XmlFile.nodes('/report/deltagere/deltager') AS XTbl(deltagere);
Which gives me this output:
| number | dato | nameFrom | nameTo | nameText | deltagertype | ...
| 142555267 | 29-12-2006 | 01-05-2000 | 01-01-2003 | foo | person | ...
| 4000134982 | 05-12-2007 | 07-07-2007 | 05-12-2007 | bar | person | ...
I would like to have a row for each name/name. So something like this:
-------------------------------------------------------
| number | dato | nameFrom | nameTo | nameText | deltagertype | ...
| 142555267 | 29-12-2006 | 01-05-2000 | 01-01-2003 | foo | person | ...
| 142555267 | 29-12-2006 | 01-01-2003 | 29-12-2006 | bzz | person | ...
| 4000134982 | 05-12-2007 | 07-07-2007 | 05-12-2007 | bar | person | ...
and so on.
I'm really lost in how to do this. So I hope any of you have any ideas on how to modify my code to allow this or maybe an different approach on the problem.

Answer 1

Try this - you need to do a second .nodes() call to enumerate all <name> subnodes:
SELECT
number = deltagere.value('(number)[1]', 'bigint'),
dato = deltagere.value('(date)[1]', 'varchar(10)'),
-- NEW NEW NEW - read from `XC` pseudo columns to get 1-n names
nameFrom = XC.value('(from)[1]', 'varchar(10)'),
nameTo = XC.value('(to)[1]', 'varchar(10)'),
nameText = XC.value('(text)[1]', 'varchar(30)'),
deltagertype = deltagere.value('(information/deltagertype)[1]', 'varchar(20)'),
leader = deltagere.value('(information/leader)[1]', 'varchar(50)'),
deltagerStatus = deltagere.value('(information/status)[1]', 'varchar(50)'),
deltagerRole = deltagere.value('(role)[1]', 'varchar(50)')
FROM
#XmlFile.nodes('/report/deltagere/deltager') AS XTbl(deltagere)
CROSS APPLY
deltagere.nodes('name/name') AS XT2(XC)