C# 数据集SQL的预处理

我有一个数据集的平面文件，有100行和2001个属性，如下所示：

att1,att2,att4,att5,att6,att7,att8,att9,att10,....,att2000,type
5,3,4,4,1,5,1,3,2,4,...,12,Agresti
4,4,2,0,1,0,2,0,0,0,...,22,bbresti
0,0,0,0,0,0,0,0,1,0,...,34,bbresti
0,0,0,1,0,0,0,1,1,1,...,45,Agresti
...
0,6,0,0,0,0,1,0,3.5,...,1,Agresti

我想对这些数据进行预处理

i,j,val
1,1,5
1,2,4
1,3,0
1,4,0
...
1,100,0
2,1,3
2,2,4
2,3,0
2,4,0
...
2,100,6
3,1,4
3,2,2
3,3,0
3,4,0
...
...
2000,100,1

因此，我去掉了最后一个列类型，我知道在sql中，我将执行以下操作：

CREATE TABLE matrix (Row int NOT NULL, Column int NOT NULL, Value <datatype> NOT NULL)

SELECT Row AS Column
       ,Column AS Row
       ,Value
FROM matrix

---

但是，正如我想在SQL中导入表一样，但是c中的代码是什么样子的呢。然后使用该类将数据推送到SQLServer中的表中

希望能有帮助

using System.IO;

namespace ConsoleApplication1
{
     class Program
     {
          static void Main(string[] args)
          {
                string[] parts;
                //string[] lines = System.IO.File.ReadAllLines(@"somefile.csv");
                string[] lines = new string[] { 
                     "a1,a2,a3,a4,type", 
                     "22,33,44,55,t1", 
                     "222,333,444,555,t2", 
                     "2222,3333,4444,5555,t3" };
                int lineno = 1;

                string path = @"c:\output.csv";
                using (TextWriter writer = File.CreateText(path))
                {
                     foreach (string line in lines)
                     {
                          if (lineno > 1)
                          {
                                parts = line.Split(',');
                                for (int a = 0; a < parts.Length - 1; a++)
                                     writer.WriteLine(lineno.ToString() + "," + (a+1).ToString() + "," + parts[a]);
                          }
                          lineno++;
                     }
                }
          }
     }
}