Someone

mysql> select date,category from sms_toto where date like '2012-03-31%' order by date desc;
+---------------------+----------+
| date                | category |
+---------------------+----------+
| 2012-03-31 21:07:13 | t3d      |
| 2012-03-31 21:07:13 | 8to3d    |
| 2012-03-31 21:07:09 | t56      |
| 2012-03-31 21:07:09 | 8to56    |
| 2012-03-31 21:07:04 | 8MPT     |
| 2012-03-31 21:07:04 | 8TOT     |
| 2012-03-31 21:07:04 | POR      |
| 2012-03-31 21:07:04 | POT      |
| 2012-03-31 21:07:04 | MPT      |
| 2012-03-31 21:07:04 | TOT      |
| 2012-03-31 21:07:00 | scs      |
| 2012-03-31 21:07:00 | POW      |
| 2012-03-31 21:07:00 | 8scs     |
| 2012-03-31 21:06:55 | stc      |
| 2012-03-31 21:06:55 | 8stc     |
| 2012-03-31 21:06:51 | l4d      |
| 2012-03-31 21:06:51 | pos      |
| 2012-03-31 21:06:51 | 8l4d     |
| 2012-03-31 21:06:44 | l3d      |
| 2012-03-31 21:06:44 | 8l3d     |
| 2012-03-31 21:06:39 | 8mpt     |
| 2012-03-31 21:06:39 | 8pmp     |
| 2012-03-31 21:06:39 | POR      |
| 2012-03-31 21:06:39 | POD      |
| 2012-03-31 21:06:39 | mpt      |
| 2012-03-31 21:06:39 | pmp      |
| 2012-03-31 21:06:30 | mgm      |
| 2012-03-31 21:06:30 | mpt      |
| 2012-03-31 21:06:30 | POM      |
| 2012-03-31 21:06:30 | POR      |
| 2012-03-31 21:06:30 | 8MGM     |
| 2012-03-31 21:06:30 | 8MPT     |
+---------------------+----------+
32 rows in set (0.03 sec)

mysql>