SqlBulkCopy クラス (System.Data.SqlClient)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 "
