mysql> select * from pp;

+----+------+

| id | name |

+----+------+

|  1 | xx   |

|  2 | xx   |

|  3 | xx   |

|  4 | xx   |

|  5 | xx   |

|  6 | xx   |

|  7 | xx   |

|  8 | xx   |

|  9 | xx   |

| 10 | xx   |

| 13 | xx   |

| 14 | xx   |

| 15 | xx   |

| 16 | xx   |

| 17 | xx   |

| 18 | xx   |

| 19 | xx   |

| 20 | xx   |

| 21 | xx   |

| 22 | xx   |

| 23 | xx   |

| 24 | xx   |

+----+------+

22 rows in set (0.00 sec)

mysql> delete from pp where id=24;

Query OK, 1 row affected (0.11 sec)

mysql> show create table pp;

CREATE TABLE `pp` (

  `id` int(11) NOT NULL AUTO_INCREMENT,

  `name` varchar(100) DEFAULT NULL,

  PRIMARY KEY (`id`)

) ENGINE=InnoDB AUTO_INCREMENT=25 DEFAULT CHARSET=gbk 

mysql> show create table pp;

| pp    | CREATE TABLE `pp` (

  `id` int(11) NOT NULL AUTO_INCREMENT,

  `name` varchar(100) DEFAULT NULL,

  PRIMARY KEY (`id`)

) ENGINE=InnoDB AUTO_INCREMENT=24 DEFAULT CHARSET=gbk |