public void Query() { string query = "select * from ship"; DataTable n = _dp.Query(query); for (int i = 0; i < n.Columns.Count; i++) { Console.Write(n.Columns[i].ColumnName); Console.Write("\t"); } Console.WriteLine(); for (int i = 0; i < n.Rows.Count; i++) { for (int j = 0; j < n.Columns.Count; j++) { Console.Write(n.Rows[i][j]); Console.Write("\t"); } Console.WriteLine(); } }