SQL Table result in a xml output - sql

Question

I have a table
Key code
1 100
1 200
1 300
1 400
2 100
2 200
2 300
I am looking for my result in one row with key and other row XML_data
Key XML_Data(XML column)
1 <sub><key>1...
2 <sub><key>2...
XML_Data example :
<sub>
<key> 1 </Key>
<list>
<code> 100 </code>
<code> 200 </code>
<code> 300 </code>
<code> 400 </code>
</list>
</sub>
Thanks

Answer 1

I think that this SQL Server: Two-level GROUP BY with XML output it's closer.
Posted here because i don't have reputation for comment.

Answer 2

Your question is quite fuzzy, but my magic crystall ball tells me, that you are looking for this:
DECLARE #tbl TABLE([Key] INT, code INT);
INSERT INTO #tbl VALUES
(1,100)
,(1,200)
,(1,300)
,(1,400)
,(2,100)
,(2,200)
,(2,300);
--The query will first find a distinct list of keys and then use nested FOR XML-selects to gather your data into the structure wanted:
WITH DistinctKeys AS
(SELECT [Key] FROM #tbl GROUP BY [Key])
SELECT dk.[Key]
,(
SELECT dk.[Key]
,(
SELECT t.code
FROM #tbl AS t
WHERE t.[Key]=dk.[Key]
FOR XML PATH(''),ROOT('list'),TYPE
)
FOR XML PATH('sub'),TYPE
) AS XML_Data
FROm DistinctKeys AS dk
The result
Key XML_Data
1 <sub><Key>1</Key><list><code>100</code><code>200</code><code>300</code><code>400</code></list></sub>
2 <sub><Key>2</Key><list><code>100</code><code>200</code><code>300</code></list></sub>

Answer 3

You've not specified much, as to where your XML is etc. but in general following query should help in your case.
INSERT INTO dbo.YourTable
(key, xml_data)
VALUES
(KEY, CONVERT(XML, N'YOUR_XML', 2));
You can go even further with that, by declaring XML as variable, extracing your KEY from XML, and to 2nd column adding XML based on whole variable.
DECLARE #input XML = '<sub>
<key> 1 </key>
<list>
<code> 100 </code>
<code> 200 </code>
<code> 300 </code>
<code> 400 </code>
</list>
</sub>'
INSERT INTO dbo.YourTable(key, xml_data)
SELECT
key = COALESCE(XCol.value('key[1]', 'int'),0),
xml_data = CONVERT(XML, N''''+#input+'''', 2)
FROM #input.nodes('/sub') AS XTbl(XCol)
#ATC, thank you for your comment. If really what is needed is to get table into XML format please try following - FOR XML PATH is what you're looking for
SELECT
key,
code as "list/code"
FROM dbo.YourTable
FOR XML PATH('sub')
I'm not able to test it right now unfortunately.
Here you can see similar question: How to convert records in a table to xml format using T-SQL?