select * from dtv_multiplex;+---------+----------+-------------+-----------+-----------+-----------+------------+--------+----------+------------+-----------+--------------+-------------------+----------------+---------+---------------+-----------+--------------+------------+----------------+---------------------+
| mplexid | sourceid | transportid | networkid | frequency | inversion | symbolrate | fec    | polarity | modulation | bandwidth | lp_code_rate | transmission_mode | guard_interval | visible | constellation | hierarchy | hp_code_rate | sistandard | serviceversion | updatetimestamp     |
+---------+----------+-------------+-----------+-----------+-----------+------------+--------+----------+------------+-----------+--------------+-------------------+----------------+---------+---------------+-----------+--------------+------------+----------------+---------------------+
|     253 |        1 |        4156 |      9018 | 546000000 | a         |     [NULL] | [NULL] | [NULL]   | [NULL]     | 8         | 3/4          | 2                 | 1/32           |       0 | qam_16        | n         | 3/4          | dvb        |             33 | 2006-05-03 15:38:57 |
|     254 |        1 |        8202 |      9018 | 578000000 | a         |     [NULL] | [NULL] | [NULL]   | [NULL]     | 8         | 1/2          | 2                 | 1/32           |       0 | qam_64        | n         | 2/3          | dvb        |             33 | 2006-05-03 15:38:57 |
|     255 |        1 |       12291 |      9018 | 722166670 | a         |     [NULL] | [NULL] | [NULL]   | [NULL]     | 8         | 1/2          | 2                 | 1/32           |       0 | qam_64        | n         | 2/3          | dvb        |             33 | 2006-05-03 15:38:57 |
|     256 |        1 |       16384 |      9018 | 713833330 | a         |     [NULL] | [NULL] | [NULL]   | [NULL]     | 8         | 3/4          | 2                 | 1/32           |       0 | qam_16        | n         | 3/4          | dvb        |             33 | 2006-05-03 15:38:57 |
|     257 |        1 |       20480 |      9018 | 753999990 | 0         |     [NULL] | [NULL] | [NULL]   | qpsk       | 8         | 1/2          | 2                 | 1/32           |       0 | qam_16        | n         | 3/4          | dvb        |              2 | 2006-05-03 15:38:57 |
|     258 |        1 |       24576 |      9018 | 658000000 | a         |     [NULL] | [NULL] | [NULL]   | [NULL]     | 8         | 3/4          | 2                 | 1/32           |       0 | qam_16        | n         | 3/4          | dvb        |             33 | 2006-05-03 15:38:57 |
+---------+----------+-------------+-----------+-----------+-----------+------------+--------+----------+------------+-----------+--------------+-------------------+----------------+---------+---------------+-----------+--------------+------------+----------------+---------------------+