使用SSIS中的“脚本任务”将CSV文件加载到具有不同列数和列名的Sql表中

Question

我想使用SSIS中的脚本任务将csv文件加载到SQL表中，这些脚本任务具有相似的列名但不完全相同，列的数量也各不相同。

我目前正在使用这个有用的blog下面的脚本来检查确切的列名是否存在，如果存在，则将其加载到表中，但是如果列名不存在则会失败。有没有办法使用LIKE运算符从sql表中的csv文件中搜索列名？如果找到它，将数据加载到表中，如果找不到，则忽略该列。

脚本：

    public void Main()
    {
        string delimiter = Dts.Variables["$Package::Delimiter"].Value.ToString();
        string TableName = Dts.Variables["$Package::TableName"].Value.ToString();
        SqlConnection myADONETConnection = new SqlConnection();
        myADONETConnection = (SqlConnection)
        (Dts.Connections["ADOConn"].AcquireConnection(Dts.Transaction) as SqlConnection);


        //Reading file names one by one
        string SourceDirectory = Dts.Variables["$Package::SourceFolder"].Value.ToString();
        string[] fileEntries = Directory.GetFiles(SourceDirectory);
        foreach (string fileName in fileEntries)
        {

            // MessageBox.Show(fileName);
            string columname = "";

            //Reading first line of each file and assign to variable
            System.IO.StreamReader file2 = new System.IO.StreamReader(fileName);



            //Writing Data of File Into Table
            int counter = 0;
            string line;

            System.IO.StreamReader SourceFile =
            new System.IO.StreamReader(fileName);
            while ((line = SourceFile.ReadLine()) != null)
            {

                if (counter == 0)
                {
                    columname = line.ToString();
                    columname = "" + columname.Replace(delimiter, ",");
                    //MessageBox.Show(columname);
                }

                else
                {
                    // MessageBox.Show("Inside ELSE");
                    string query = "Insert into " + TableName +
       "(" + columname + ") VALUES('" + line.Replace(delimiter, "','") + "')";
                    //MessageBox.Show(query.ToString());
                    SqlCommand myCommand1 = new SqlCommand(query, myADONETConnection);
                    myCommand1.ExecuteNonQuery();
                }

                counter++;

            }

            SourceFile.Close();
        }

        Dts.TaskResult = (int)ScriptResults.Success;
    }

    #region ScriptResults declaration
    /// <summary>
    /// This enum provides a convenient shorthand within the scope of this class for setting the
    /// result of the script.
    /// 
    /// This code was generated automatically.
    /// </summary>
    enum ScriptResults
    {
        Success = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Success,
        Failure = Microsoft.SqlServer.Dts.Runtime.DTSExecResult.Failure
    };
    #endregion

 }
}

谢谢， Ĵ