1)
SELECT TOP 1
ID AS '@id'
,1 AS '@version'
,'en' AS '@lang'
,(
SELECT x.Attribute AS '@name',
x.Value AS 'text()'
FROM (VALUES (N'Name', N'Joe Smith'), (N'Email', N'email@add.com')) x(Attribute,Value)
FOR XML PATH('field'), TYPE
)
FROM (SELECT 1 ID) AS Table1
FOR XML PATH ('add')
2) Second solution uses a template and variables. I propose this solution because i saw TOP 1
(maximum one row). First you should transfer the values from that row into variables (SELECT @Variable = Column, ... FROM Table
). You have greater flexibility but the performance could be affected (note: I didn't do any tests).
DECLARE
@ID INT = 1,
@Version INT = 1,
@Lang NVARCHAR(10) = N'en',
@Name NVARCHAR(50) = N'Joe Smith',
@Email NVARCHAR(100) = N'email@add.com'
DECLARE @x XML = N'';
SELECT @x.query(N'
<add id="{sql:variable("@ID")}" version="{sql:variable("@Version")}" lang="{sql:variable("@Lang")}">
<field name="Name">{sql:variable("@Name")}</field>
<field name="Email">{sql:variable("@Email")}</field>
</add>
');