XML列の出力

Question

SQLServerデータベースと.NETを使用してXMLファイルを生成するコンソールプログラムに取り組んでいます。

現在、適切なXMLファイルを生成するためのコードに固執しています。Categoriesメモ帳でファイルを開いたときにノードがXML形式として正しく識別されず、その結果、ノードを適切に使用できません。

必要なのはこれです：

1. Categories以下のように適切なXMLタグを生成し、メモ帳で開くときに特殊文字を含めないでください。

2. 複数のサイトID（場所）がある場合、SQLテーブルからコードに対してforループを実行するにはどうすればよいですか。

    Dim dsXmlDoc As XmlDocument = New XmlDocument()
    ds.Tables(0).TableName = "Inv"
    dsXmlDoc.LoadXml(ds.GetXml())
   
    Dim xmlInner As XmlElement = CType(xmlDoc.SelectSingleNode("/Root/"),
    XmlElement)xmlInner.AppendChild(xmlDoc.ImportNode(dsXmlDoc.DocumentElement, True))
   

Answer 1

私はそれがこれになると思います：

WITH x AS (
  SELECT 
    A.[ORDER ID],
    RIGHT(A.[POS ID], 2) AS [LesseePOSNumber],
    REPLACE(A.[BUSINESS DATE],'-','') + '-' + A.[RECEIPT NUMBER] AS [InvoiceNumber],
    '1' AS [DocumentType],
    CAST(A.[BUSINESS DATE] AS datetime) + CAST(A.[START SALE TIME] AS DATETIME) AS [TransactionDateTime],
    SUM(A.ITEM) AS [TotalNumberOfItems],
    SUM(A.[TOTAL AMOUNT] - A.[TOTAL TAX]) AS [TransactionTotalWithoutVAT],
    SUM(A.[TOTAL TAX]) AS [VATTotalAmount],
    '1' AS [PaymentType],
    '4' AS [Currency]
  FROM 
  (
    SELECT 
           T1.[storeId] AS [STORE NO]
          ,CONVERT(date,CONVERT(varchar(15),T1.businessDate,101)) AS [BUSINESS DATE]
          ,FORMAT(CONVERT(datetime,SUBSTRING(T1.startSaleTime,1,2) + ':' + SUBSTRING(T1.startSaleTime,3,2) + ':' + SUBSTRING(T1.startSaleTime,5,2), 121), 'h:mm:ss') AS [START SALE TIME]
          ,CASE WHEN (T1.Type) = 'TRX_Refund' OR (T1.Type) = 'TRX_Overring' THEN CAST(T1.[totalAmount] AS decimal(16,2)) * -1 ELSE CAST(T1.[totalAmount] AS decimal(16,2)) END AS [TOTAL AMOUNT]
          ,CASE WHEN (T1.Type) = 'TRX_Refund' OR (T1.Type) = 'TRX_Overring' THEN 0 ELSE 1 END AS [GC] 
          ,CASE WHEN (T1.Type) = 'TRX_Refund' OR (T1.Type) = 'TRX_Overring' THEN CAST(T1.[totalTax] AS decimal(16,2)) * -1 ELSE CAST(T1.[totalTax] AS decimal(16,2)) END AS [TOTAL TAX]     
          ,T1.NodeId AS [POS ID]
          ,T1.[receiptNumber] AS [RECEIPT NUMBER]
          ,T1.orderId AS [ORDER ID]
          ,
          (
            SELECT SUM(CASE WHEN CAST(T2.totalPrice AS float) > 0.00 THEN 1 ELSE 0 END) 
            FROM [McDonalds_STG].[dbo].[ITEMLEVEL] T2
            WHERE T2.orderId = T1.orderId
          ) AS [ITEM]

    FROM [McDonalds_STG].[dbo].[Orders] T1

  ) A

  GROUP BY
    A.[STORE NO],
    A.[BUSINESS DATE],
    A.[POS ID],
    A.[RECEIPT NUMBER],
    A.[START SALE TIME],
    A.[ORDER ID]
)
SELECT 
  x.[LesseePOSNumber],
  x.[InvoiceNumber],
  x.[DocumentType],
  x.[TransactionDateTime],
  x.[TotalNumberOfItems],
  x.[TransactionTotalWithoutVAT],
  x.[VATTotalAmount],
  x.[PaymentType],
  x.[Currency], 
  (
    SELECT 
      49 AS [ID],
      (CAST(T1.[totalAmount] AS decimal(16,2)) - CAST(T1.[totalTax] AS decimal(16,2)) ) AS [Total]
    FROM [Order] T2  
    WHERE T2.orderId = x.[ORDER ID]  
    FOR XML PATH('Category'), TYPE 
  ) As Categories
FROM x
FOR XML PATH ('Invoice'), root ('Invoices')

ここには、重要で賢明なリファクタリングの機会がまだいくつかあり（日付/文字列/日付の処理は破棄して、可能な場合は文字列を使用せずにやり直す必要があります）、タイプミスの修正が必要になる場合があります。読むのは簡単なSQLではなく、SSMSに直接貼り付けて、調整なしで機能するとは思いません。

GROUP BY STORE NOですが、使用していないように見えることに注意してください

Answer 2

xml linqを試してください：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml;
using System.Xml.Linq;

namespace ConsoleApplication1
{
    class Program
    {
        const string FILENAME = @"c:\temp\test.xml";
        static void Main(string[] args)
        {
            XDocument doc = XDocument.Load(FILENAME);

            Dictionary<string, XElement> dict = doc.Descendants("Invoice")
                .GroupBy(x => (string)x.Element("LesseePOSNumber"), y => y)
                .ToDictionary(x => x.Key, y => y.FirstOrDefault());

            string lesseePOSNumber = "1";
            string id = "29";
            int total = 3000;
            if (dict.ContainsKey(lesseePOSNumber))
            {
                XElement categories = new XElement("Categories", new XElement("Category", new object[] {
                    new XElement("ID", id),
                    new XElement("Total", total)
                }));

                dict[lesseePOSNumber].Add(categories);
            }
 
        }
    }
}