mysql>
mysql> CREATE TABLE test1(id TINYINT ZEROFILL);
Query OK, 0 rows affected (0.00 sec)
mysql>
mysql> INSERT INTO test1 VALUES(3);
Query OK, 1 row affected (0.00 sec)
mysql>
mysql> INSERT INTO test1 VALUES (-1);
Query OK, 1 row affected, 1 warning (0.00 sec)
mysql>
mysql> INSERT INTO test1 VALUES (256);
Query OK, 1 row affected, 1 warning (0.00 sec)
mysql>
mysql> SELECT * from test1;
+------+
| id |
+------+
| 003 |
| 000 |
| 255 |
+------+
3 rows in set (0.00 sec)
mysql>
mysql> drop table test1;
Query OK, 0 rows affected (0.00 sec)