SQL Server FOR XML with nested sub-select - sql-server

Question

The following sql code
SELECT
b.GivenName [Individual/Name/FirstName] ,
b.FamilyName [Individual/Name/LastName] ,
b.Address_Country [Individual/Address/CountryCode] ,
b.AddressFree [Individual/Address/AddressFree]
FROM dbo.stage_Clients_Merge b
WHERE b.DWHClientNo = #dwhclientNo
FOR XML PATH('Owner'), TYPE
will generate an xml fragment
<Owner>
<Individual>
<Name>
<FirstName>Bob</FirstName>
<LastName>Smith</LastName>
</Name>
<Address>
<CountryCode>US</CountryCode>
<AddressFree>123,Utah</AddressFree>
</Address>
</Individual>
</Owner>
If I extend this query to include a sub-query to return, for example, all the orders associated with a individual using the following:
(SELECT
c.OrderIdentificationNumber [Individual/OrderNumber]
FROM
dbo.stage_Customer_Orders c
WHERE
c.CustomerNo = b.masterClient
FOR
XML PATH(''), TYPE)
I will get the individual section twice. How can I combine the two to return the following?
<Owner>
<Individual>
<OrderNo>12345</OrderNo>
<OrderNo>23456</OrderNo>
<Name>
<FirstName>Bob</FirstName>
<LastName>Smith</LastName>
</Name>
<Address>
<CountryCode>US</CountryCode>
<AddressFree>123,Utah</AddressFree>
</Address>
</Individual>
</Owner>

Answer 1

Try it like this
I set up a mock-up scenario for stand-alone solutions. Next time you have a question, you might try this on your own. This makes it much easier to understand your issue and create a fully working and testable solution for it.
DECLARE #stage_Clients_Merge TABLE(ID INT,FirstName VARCHAR(100),LastName VARCHAR(100),CountryCode VARCHAR(100),AdressFree VARCHAR(100));
INSERT INTO #stage_Clients_Merge VALUES
(1,'Bob','Smith','US','123/Utah')
,(2,'Jim','Doh','US','123/Maryland');
DECLARE #orders TABLE(CustomerID INT, OrderNo INT)
INSERT INTO #orders VALUES
(1,11111),(1,12222)
,(2,21111),(2,22222);
SELECT (SELECT OrderNo FROM #orders WHERE CustomerID=b.ID FOR XML PATH(''),TYPE) AS Individual
,FirstName AS [Individual/Name/FirstName]
,LastName AS [Individual/Name/LastName]
,CountryCode AS [Individual/Address/CountryCode]
,AdressFree AS [Individual/Address/AdressFree]
FROM #stage_Clients_Merge AS b
FOR XML PATH('Owner');

Answer 2

You can use a subquery and [data()] to just get the column values with no additional nesting - then use path as before:
SELECT
(SELECT c.OrderIdentificationNumber as [data()]
FROM dbo.stage_Customer_Orders c
WHERE c.CustomerNo = b.masterClient
For XML Path('OrderNo'), type) as [Individual],
b.GivenName [Individual/Name/FirstName] ,
b.FamilyName [Individual/Name/LastName] ,
b.Address_Country [Individual/Address/CountryCode] ,
b.AddressFree [Individual/Address/AddressFree]
FROM dbo.stage_Clients_Merge b
WHERE b.DWHClientNo = #dwhclientNo
FOR XML PATH('Owner'), TYPE