C# sql 查询为 xml 中的元素添加属性

Question

I want to display the XML file by taking tag from the XML_TAGS table, and attributes from the MAPPED_TAGS_ATTRIBUTES table - something like <element attributes></element> :

String sql = "SELECT Dtd_Tag,Dtd_Attribute_Name 
                FROM Xml_Tags,
                     Mapped_Tags_Attributes 
               WHERE Mapped_Tags_Attributes.Pdf_Tag = Xml_Tags.Pdf_Tag 
            ORDER BY Mapped_Tags_Attributes.Pdf_Tag 
             FOR XML AUTO"; 

Answer 1

Query:

select
    c.CustomerId as "@Id",
    c.AcountNumber as "@AcountNumber"
from Customer c
for xml path('Customer'), root('Customers')

Result:

<Customers>
   <Customer Id="1" AccountNumber="X120" />
   <Customer Id="2" AccountNumber="X121" />
</Customers>