如何将 XML 从 C# 传递到 SQL Server 2008 中的存储过程? [英] How to pass XML from C# to a stored procedure in SQL Server 2008?

问题描述

我想将xml文档传递给sql server存储过程，例如:

I want to pass xml document to sql server stored procedure such as this:

CREATE PROCEDURE BookDetails_Insert (@xml xml)

我想将一些字段数据与其他表数据进行比较，如果匹配，则必须将记录插入到表中.

I want compare some field data with other table data and if it is matching that records has to inserted in to the table.

要求:

1. 如何将 XML 传递给存储过程?我试过了，但它不起作用:[工作]

command.Parameters.Add(
    new SqlParameter("@xml", SqlDbType.Xml)
    {
        Value = new SqlXml(new XmlTextReader(xmlToSave.InnerXml,
                           XmlNodeType.Document, null))
    });

如何访问存储过程中的 XML 数据?

How do I access the XML data within the stored procedure?

[工作]

 String sql = "BookDetails_Insert";
        XmlDocument xmlToSave = new XmlDocument();
        xmlToSave.Load("C:\Documents and Settings\Desktop\XML_Report\Books_1.xml");

        SqlConnection sqlCon = new SqlConnection("...");
        using (DbCommand command = sqlCon.CreateCommand())
        {
            **command.CommandType = CommandType.StoredProcedure;**
            command.CommandText = sql;
            command.Parameters.Add(
              new SqlParameter("@xml", SqlDbType.Xml)
              {
                  Value = new SqlXml(new XmlTextReader(xmlToSave.InnerXml
                             , XmlNodeType.Document, null))
              });

            sqlCon.Open();
            DbTransaction trans = sqlCon.BeginTransaction();
            command.Transaction = trans;

            try
            {
                command.ExecuteNonQuery();
                trans.Commit();
                sqlCon.Close();
            }
            catch (Exception)
            {
                trans.Rollback();
                sqlCon.Close();
                throw;
            }

编辑 2:如何创建选择查询来选择页面，根据某些条件进行描述.

Edit 2: How to create a select query to select pages, description based on some conditions.

  <booksdetail> <isn_13>700001048</isbn_13> <isn_10>01048B</isbn_10>       
    <Image_URL>http://www.landt.com/Books/large/00/7010000048.jpg</Image_URL>   
    <title>QUICK AND FLUPKE</title> <Description> PRANKS AND JOKES QUICK AND FLUPKE </Description> </booksdetail> 

推荐答案

对于您问题的第 2 部分，请参阅我对 存储过程:传递 XML 作为参数和 INSERT(键/值对)在存储过程中使用 XML.

For part 2 of your question, see my answer to Stored procedure: pass XML as an argument and INSERT (key/value pairs) for an example of how to use XML within a stored procedure.

编辑:下面的示例代码基于评论中给出的具体示例.

EDIT: Sample code below is based on the specific example given in the comments.

declare @MyXML xml

set @MyXML = '<booksdetail> 
                  <isbn_13>700001048</isbn_13> 
                  <isbn_10>01048B</isbn_10> 
                  <Image_URL>http://www.landt.com/Books/large/00/70100048.jpg</Image_URL> 
                  <title>QUICK AND FLUPKE</title> 
                  <Description> PRANKS AND JOKES QUICK AND FLUPKE - CATASTROPHE QUICK AND FLUPKE </Description> 
              </booksdetail>'

select Book.detail.value('(isbn_13/text())[1]','varchar(100)') as isbn_13, 
       Book.detail.value('(isbn_10/text())[1]','varchar(100)') as isbn_10, 
       Book.detail.value('(Image_URL/text())[1]','varchar(100)') as Image_URL, 
       Book.detail.value('(title/text())[1]','varchar(100)') as title, 
       Book.detail.value('(Description/text())[1]','varchar(100)') as Description
    from @MyXML.nodes('/booksdetail') as Book(detail)     

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