第五节 添加字段之insert into

'''
t_student表结构
+--------+------------------------+------+-----+---------+----------------+
| Field  | Type                   | Null | Key | Default | Extra          |
+--------+------------------------+------+-----+---------+----------------+
| id     | int(10) unsigned       | NO   | PRI | NULL    | auto_increment |
| name   | varchar(30)            | YES  |     | NULL    |                |
| age    | tinyint(3) unsigned    | YES  |     | 0       |                |
| gender | enum('男','女','保密') | YES  |     | 保密    |                |
| cls_id | int(10) unsigned       | YES  |     | NULL    |                |
| birth  | date                   | YES  |     | NULL    |                |
+--------+------------------------+------+-----+---------+----------------+
'''
-- 每个字段都插入数据
-- auto_increment可以用0，null，default表示，不能不写
-- enum('男','女','保密')可以用数据1,2,3对应表示
INSERT INTO t_student VALUES(0,'小李飞刀',20,'女',1,'1990-1-1');
INSERT INTO t_student VALUES(null,'小李飞刀',20,'女',1,'1990-1-1');
INSERT INTO t_student VALUES(default,'小李飞刀',20,'女',1,'1990-1-1');

-- 指定列添加数据
INSERT INTO t_student (name,gender)  VALUES('小法1',1),('小法2',1);