mysql简单的增删改查语句_MySQL

注：null关键字与auto_increment条件相结合，可以为字段自动赋值；字段必须全，且一一对应；字符型用单引号；

1 mysql> insert into test values('sunshine_habit','hello_world_lyq@163.com'

2 -> ,1558888888,null);

输出：

3 Query OK, 1 row affected (0.10 sec)

查询记录：

1 mysql> select * from test where name='sunshine_habit';

2 输出：

3 +----------------+-------------------------+--------------+----+

4 | name | email | phone_number | id |

5 +----------------+-------------------------+--------------+----+

6 | sunshine_habit | hello_world_lyq@163.com | 1558888888 | 1 |

7 +----------------+-------------------------+--------------+----+

8 1 row in set (0.00 sec)

修改记录：

1 mysql> update test set name='Sam' where name='sunshine';

输出：

2 Query OK, 1 row affected (0.06 sec)

3 Rows matched: 1 Changed: 1 Warnings: 0

删除记录

1 mysql> delete from test where name='Snow White';

2 Query OK, 1 row affected (0.08 sec)