Fastest Way of Inserting in Entity Framework

Question

I\'m looking for the fastest way of inserting into Entity Framework.

I\'m asking this because of the scenario where you have an active TransactionScope a

Answer 1

Use SqlBulkCopy:

void BulkInsert(GpsReceiverTrack[] gpsReceiverTracks)
{
    if (gpsReceiverTracks == null)
    {
        throw new ArgumentNullException(nameof(gpsReceiverTracks));
    }

    DataTable dataTable = new DataTable("GpsReceiverTracks");
    dataTable.Columns.Add("ID", typeof(int));
    dataTable.Columns.Add("DownloadedTrackID", typeof(int));
    dataTable.Columns.Add("Time", typeof(TimeSpan));
    dataTable.Columns.Add("Latitude", typeof(double));
    dataTable.Columns.Add("Longitude", typeof(double));
    dataTable.Columns.Add("Altitude", typeof(double));

    for (int i = 0; i < gpsReceiverTracks.Length; i++)
    {
        dataTable.Rows.Add
        (
            new object[]
            {
                    gpsReceiverTracks[i].ID,
                    gpsReceiverTracks[i].DownloadedTrackID,
                    gpsReceiverTracks[i].Time,
                    gpsReceiverTracks[i].Latitude,
                    gpsReceiverTracks[i].Longitude,
                    gpsReceiverTracks[i].Altitude
            }
        );
    }

    string connectionString = (new TeamTrackerEntities()).Database.Connection.ConnectionString;
    using (var connection = new SqlConnection(connectionString))
    {
        connection.Open();
        using (var transaction = connection.BeginTransaction())
        {
            using (var sqlBulkCopy = new SqlBulkCopy(connection, SqlBulkCopyOptions.TableLock, transaction))
            {
                sqlBulkCopy.DestinationTableName = dataTable.TableName;
                foreach (DataColumn column in dataTable.Columns)
                {
                    sqlBulkCopy.ColumnMappings.Add(column.ColumnName, column.ColumnName);
                }

                sqlBulkCopy.WriteToServer(dataTable);
            }
            transaction.Commit();
        }
    }

    return;
}