string commStringUpdatePlayablePlayer = "UPDATE player SET player.playable = " + Value.ToString() +
                " WHERE player.id = " + player.ID.ToString();

using(OleDbCommand  commUpdatePlayablePlayer = connDB.CreateCommand())
{
  commUpdatePlayablePlayer.CommandText = commStringUpdatePlayablePlayer;
  commUpdatePlayablePlayer.ExecuteNonQuery(); // "No value given for one or more required parameters."
}