批量添加数据SqlBulkCopy

 using System.Data.SqlClient;

 class Program
 {
     static void Main()
     {
         string connectionString = GetConnectionString();
         // Open a sourceConnection to the AdventureWorks database.
         using (SqlConnection sourceConnection =
                    new SqlConnection(connectionString))
         {
             sourceConnection.Open();

             // Perform an initial count on the destination table.
             SqlCommand commandRowCount = new SqlCommand(
                 "SELECT COUNT(*) FROM " +
                 "dbo.BulkCopyDemoMatchingColumns;",
                 sourceConnection);
             long countStart = System.Convert.ToInt32(
                 commandRowCount.ExecuteScalar());
             Console.WriteLine("Starting row count = {0}", countStart);

             // Get data from the source table as a SqlDataReader.
             SqlCommand commandSourceData = new SqlCommand(
                 "SELECT ProductID, Name, " +
                 "ProductNumber " +
                 "FROM Production.Product;", sourceConnection);
             SqlDataReader reader =
                 commandSourceData.ExecuteReader();

             // Open the destination connection. In the real world you would
             // not use SqlBulkCopy to move data from one table to the other
             // in the same database. This is for demonstration purposes only.
             using (SqlConnection destinationConnection =
                        new SqlConnection(connectionString))
             {
                 destinationConnection.Open();

                 // Set up the bulk copy object.
                 // Note that the column positions in the source
                 // data reader match the column positions in
                 // the destination table so there is no need to
                 // map columns.
                 using (SqlBulkCopy bulkCopy =
                            new SqlBulkCopy(destinationConnection))
                 {
                     bulkCopy.DestinationTableName =
                         "dbo.BulkCopyDemoMatchingColumns";

                     try
                     {
                         // Write from the source to the destination.
                         bulkCopy.WriteToServer(reader);
                     }
                     catch (Exception ex)
                     {
                         Console.WriteLine(ex.Message);
                     }
                     finally
                     {
                         // Close the SqlDataReader. The SqlBulkCopy
                         // object is automatically closed at the end
                         // of the using block.
                         reader.Close();
                     }
                 }

                 // Perform a final count on the destination
                 // table to see how many rows were added.
                 long countEnd = System.Convert.ToInt32(
                     commandRowCount.ExecuteScalar());
                 Console.WriteLine("Ending row count = {0}", countEnd);
                 Console.WriteLine("{0} rows were added.", countEnd - countStart);
                 Console.WriteLine("Press Enter to finish.");
                 Console.ReadLine();
             }
         }
     }

     private static string GetConnectionString()
         // To avoid storing the sourceConnection string in your code,
         // you can retrieve it from a configuration file.
     {
         return "Data Source=(local); " +
             " Integrated Security=true;" +
             "Initial Catalog=AdventureWorks;";
     }
 }

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