用SqlBulkCopy进行大批量数据迁移

 1ConnectionStringSettings pubs =
 2            ConfigurationManager.ConnectionStrings["PubsData"];
 3         DbConnection connection =
 4            new SqlConnection(pubs.ConnectionString);
 5         ConnectionStringSettings bulkCopy =
 6            ConfigurationManager.ConnectionStrings["BulkCopy"];
 7         SqlConnection bulkCopyConnection =
 8            new SqlConnection(bulkCopy.ConnectionString);
 9         DbCommand cmd = connection.CreateCommand();
10         cmd.CommandType = CommandType.Text;
11         cmd.CommandText = "SELECT stor_name FROM Stores";
12         connection.Open();
13         bulkCopyConnection.Open();
14         DbDataReader rdr = cmd.ExecuteReader();
15         SqlBulkCopy bc = new SqlBulkCopy(bulkCopyConnection);
16         bc.DestinationTableName = "StoreList";
17         bc.WriteToServer(rdr);
18         connection.Close();
19         bulkCopyConnection.Close();
20         MessageBox.Show("Done with bulk copy");