C# sql 查询为 xml 中的元素添加属性

Question

我想通过从XML_TAGS 表中获取标签和MAPPED_TAGS_ATTRIBUTES 表中的属性来显示 XML 文件 - 类似于 <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

查询：

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

结果：

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