my $q = "insert into weather_data("
          . "    reading_DTM, reading_YMD, reading_HMS, wd,"
          . "    wv,          tF,          tC,          bp,"
          . "    rh,          li,          ov,          lux,"
          . "    bbl,         irl,         ra,          rr"
          . ")"
          . "values ("
          . "    ?,           ?,           ?,           ?,"
          . "    ?,           ?,           ?,           ?,"
          . "    ?,           ?,           ?,           ?,"
          . "    ?,           ?,           ?,           ?"
          . ")";