mysql> describe datatable2_data;
+-----------+------------------+------+-----+---------+-------+
| Field | Type | Null | Key | Default | Extra |
+-----------+------------------+------+-----+---------+-------+
| dtd_table | varchar(255) | NO | MUL | | |
| dtd_page | int(10) unsigned | YES | MUL | NULL | |
| dtd_01 | varchar(255) | YES | MUL | NULL | |
| dtd_02 | varchar(255) | YES | MUL | NULL | |
| dtd_03 | varchar(255) | YES | MUL | NULL | |
| dtd_04 | varchar(255) | YES | MUL | NULL | |
| dtd_05 | varchar(255) | YES | MUL | NULL | |
| dtd_06 | varchar(255) | YES | MUL | NULL | |
| dtd_07 | varchar(255) | YES | MUL | NULL | |
| dtd_08 | varchar(255) | YES | MUL | NULL | |
| dtd_09 | varchar(255) | YES | MUL | NULL | |
| dtd_10 | varchar(255) | YES | MUL | NULL | |
| dtd_11 | varchar(255) | YES | | NULL | |
| dtd_12 | varchar(255) | YES | | NULL | |
| dtd_13 | varchar(255) | YES | | NULL | |
| dtd_14 | varchar(255) | YES | | NULL | |
| dtd_15 | varchar(255) | YES | | NULL | |
| dtd_16 | varchar(255) | YES | | NULL | |
| dtd_17 | varchar(255) | YES | | NULL | |
| dtd_18 | varchar(255) | YES | | NULL | |
| dtd_19 | varchar(255) | YES | | NULL | |
| dtd_20 | varchar(255) | YES | | NULL | |
| dtd_21 | varchar(255) | YES | | NULL | |
| dtd_22 | varchar(255) | YES | | NULL | |
| dtd_23 | varchar(255) | YES | | NULL | |
| dtd_24 | varchar(255) | YES | | NULL | |
| dtd_25 | varchar(255) | YES | | NULL | |
| dtd_26 | varchar(255) | YES | | NULL | |
| dtd_27 | varchar(255) | YES | | NULL | |
| dtd_28 | varchar(255) | YES | | NULL | |
| dtd_29 | varchar(255) | YES | | NULL | |
| dtd_30 | varchar(255) | YES | | NULL | |
+-----------+------------------+------+-----+---------+-------+