MYSQL基础管理-auto_increment测试应用

mysql> create table tid (id int not null auto_increment,name varchar(100) ,prima

ry key(id));

Query OK, 0 rows affected (0.11 sec)

mysql>

mysql>

mysql> insert into tid values('123');

ERROR 1136 (21S01): Column count doesn't match value count at row 1

mysql> insert into tid(name) values('123');

Query OK, 1 row affected (0.02 sec)

mysql> commit;

Query OK, 0 rows affected (0.00 sec)

mysql> select * from tid;

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

| id | name |

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

| 1 | 123 |

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

1 row in set (0.01 sec)

mysql> insert into tid(name) values('1111');

Query OK, 1 row affected (0.01 sec)

mysql> insert into tid(name) values('1111');

Query OK, 1 row affected (0.02 sec)

mysql> insert into tid(name) values('1111');

Query OK, 1 row affected (0.01 sec)

mysql> insert into tid(name) values('1111');

Query OK, 1 row affected (0.01 sec)

mysql> insert into tid(name) values('1111');

Query OK, 1 row affected (0.01 sec)

mysql> insert into tid(name) values('1111');

Query OK, 1 row affected (0.01 sec)

mysql> insert into tid(name) values('1111');

Query OK, 1 row affected (0.01 sec)

mysql> insert into tid(name) values('1111');

Query OK, 1 row affected (0.02 sec)

mysql> select * from tid;

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

| id | name |

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

| 1 | 123 |

| 2 | 1111 |

| 3 | 1111 |

| 4 | 1111 |

| 5 | 1111 |

| 6 | 1111 |

| 7 | 1111 |

| 8 | 1111 |

| 9 | 1111 |

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

9 rows in set (0.00 sec)

mysql> show create table tid\G

*************************** 1. row ***************************

Table: tid

Create Table: CREATE TABLE `tid` (

`id` int NOT NULL AUTO_INCREMENT,

`name` varchar(100) DEFAULT NULL,

PRIMARY KEY (`id`)

) ENGINE=InnoDB AUTO_INCREMENT=10 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_a

i_ci

1 row in set (0.01 sec)

mysql>

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