T-SQL XML 输出文件

Question

我相信已经有很多关于这个主题的帖子，但到目前为止还没有出现任何我需要去的地方......

基本上我正在尝试从 SQL 重新创建以下 XML 输出文件。

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<inventory company_acro_name="TEST" company_mail_to="" hold_on_error="N">
    <product recordtype="INVENTORY" quantity="48" supplierassortmentid="4916464_811-6.5" date="2018-04-25 13:29:32" />
    <product recordtype="INVENTORY" quantity="89" supplierassortmentid="4916464_811-7" date="2018-04-25 13:29:32" />
    <product recordtype="INVENTORY" quantity="136" supplierassortmentid="4916464_811-7.5" date="2018-04-25 13:29:32" />
    <product recordtype="INVENTORY" quantity="57" supplierassortmentid="4916464_811-8" date="2018-04-25 13:29:32" />
    <product recordtype="INVENTORY" quantity="54" supplierassortmentid="4916464_811-8.5" date="2018-04-25 13:29:32" />
    <product recordtype="INVENTORY" quantity="46" supplierassortmentid="4916464_811-9" date="2018-04-25 13:29:32" />
    <product recordtype="INVENTORY" quantity="50" supplierassortmentid="4916464_811-9.5" date="2018-04-25 13:29:32" />
</inventory>

到目前为止，我已经设法使用以下脚本生成数据部分

SELECT
    1 as [Tag], 0 as [Parent],
    'INVENTORY' as [Product!1!recordtype],
    CAST([Available_Quantity] as int) as [Product!1!quantity],
    [Product]  + '_' +  [Matrix_Code_1] + '-' + [Matrix_Code_2] as [Product!1!supplierassortmentid],
    CONVERT(smalldatetime,CURRENT_TIMESTAMP) as [Product!1!date]
FROM 
    [dbo].[TStock]
WHERE 
    Company = 4
FOR XML EXPLICIT

但是我正在努力添加所需文件的前两行

这个可以吗？

谢谢

Answer 1

FOR XML EXPLICIT 已经过时了。在某些情况下它仍然有用。但是你的问题最好这样解决：

这是您的表格的简化模型，其中包含一些示例数据。下次请自行add such an MCVE。

CREATE TABLE TStock  (
id INT NOT NULL IDENTITY(1,1) PRIMARY KEY,
Available_Quantity INT,
YourCode VARCHAR(100)
);

INSERT INTO TStock(Available_Quantity,YourCode) VALUES
 (10,'Code Row 1')
,(20,'Code Row 2')

GO

--查询将使用SELECT FOR XML PATH两次

SELECT 'TEST' AS [@company_acro_name]
      ,'' AS [@company_mail_to]
      ,'N' AS [@hold_on_error]
      ,(
        SELECT 'INVENTORY' AS [@recordtype]
              ,Available_Quantity AS [@quantity]
              ,YourCode AS [@supplierassortmentid]
        FROM TStock
        FOR XML PATH('product')
       ,TYPE) AS [*]
FOR XML PATH('inventory')

--清理（注意真实数据！）

/*
GO
DROP TABLE TStock;
*/

结果

<inventory company_acro_name="TEST" company_mail_to="" hold_on_error="N">
  <product recordtype="INVENTORY" quantity="10" supplierassortmentid="Code Row 1" />
  <product recordtype="INVENTORY" quantity="20" supplierassortmentid="Code Row 2" />
</inventory>

关于 xml 声明 <?xml blah?> 阅读以下链接：

https://stackoverflow.com/a/49768800/5089204（以及那里的链接答案）

https://stackoverflow.com/a/37477855/5089204