Date Time MySQL

mysql>
mysql> select TIMESTAMPDIFF(DAY, '2005-12-31', '2006-02-15');
+------------------------------------------------+
| TIMESTAMPDIFF(DAY, '2005-12-31', '2006-02-15') |
+------------------------------------------------+
|                                             46 |
+------------------------------------------------+
1 row in set (0.00 sec)
mysql>
mysql>