mysql> insert into foo values("20011023083000");
Query OK, 1 row affected (0.01 sec)


mysql> insert into foo values("2001-10-24 12:24:00");
Query OK, 1 row affected (0.00 sec)


mysql> select * from foo;                            
+----------------+
| dt             |
+----------------+
| 20011024122400 |
| 20011023083000 |
+----------------+
2 rows in set (0.01 sec)