Sql server XML explicit group by parent标记不起作用

我要求输出如下。但是当我执行我的代码时，我没有将产品正确地分组到每个父项下，就像在美国国家代码下，我们需要三个产品，在FR下，我们需要两个产品一样

<?xml version="1.0" encoding="utf-8"?>
<ComProducts>
  <Country Code="US">
    <Product>
      <manufacturername>abc</manufacturername>
      <productname>xyz road</productname>
      <upc>RJ</upc>
    </Product>
    <Product>
      <manufacturername>temp</manufacturername>
      <productname>ppp road</productname>
      <upc>RJ</upc>
    </Product>
    <Product>
      <manufacturername>ccc</manufacturername>
      <productname>oli Com</productname>
      <upc>CL</upc>
    </Product>
  </Country>
  <Country Code="FR">
    <Product>
      <manufacturername>xxx</manufacturername>
      <productname>aaa road</productname>
      <upc>NY</upc>
    </Product>
    <Product>
      <manufacturername>eee</manufacturername>
      <productname>olkiu road</productname>
      <upc>CL</upc>
    </Product>
  </Country>
</ComProducts>

---

我建议您使用for xml path而不是for xml explicit来执行此操作

选择P1.code作为“@code”， 选择P2.manufacturername， P2.productname， P2.upc 来自@Products作为P2 其中P1.code=P2.code 对于xml路径“Product”，键入 来自@Products作为P1 按P1.2代码分组 对于xml路径'Country'，根'ComProducts'； 结果:

abc xyz路 RJ 临时雇员 ppp路 RJ ccc 奥利公司 氯 xxx aaa路 纽约 eee 奥尔丘路 氯

DECLARE @Products TABLE   
        (   
           code             VARCHAR(10),   
           manufacturername VARCHAR(50),   
           productname      NVARCHAR(255),   
           upc              VARCHAR(100)  

        )   

      INSERT INTO @Products   
            select  'en-us', 'abc', 'xyz road', 'RJ' union all
            select  'en-us', 'temp', 'ppp road', 'RJ' union all
            select  'fr-fr', 'xxx', 'aaa road', 'NY' union all
            select  'en-us', 'ccc', 'oli Com', 'CL' union all
            select  'fr-fr', 'eee', 'olkiu road', 'CL' 


      SELECT 1    AS Tag,   
             NULL AS Parent,   
             NULL AS 'ComProducts!1!',   
             NULL AS 'Country!2!locale',
             NULL AS 'Products!3!',   
             NULL AS 'Products!3!manufacturerName!Element',   
             NULL AS 'Products!3!productName!cdata',   
             NULL AS 'Products!3!upc!Element'
      UNION ALL   
      SELECT 2 AS Tag,   
             1 AS Parent,   
             NULL,   
             code,
             NULL,   
             manufacturername,   
             productname,   
             upc
             FROM   @Products  
      UNION ALL   
      SELECT 3 AS Tag,   
             2 AS Parent,   
             NULL,   
             NULL,
             NULL,   
             manufacturername,   
             productname,   
             upc  

      FROM   @Products 
      FOR    xml explicit