这是表格:
create table Student(
student_id char(6) primary key,
name varchar(10) not null,
department char(20),
grade char(6),
percentage smallint,
contact_no char(12),
address varchar(50)
);
这就是我要插入的内容:
insert into Student
values ('ST-01','Zain','coe','A+',74,'9999777865','New Delhi');
为什么 ORA-00913:当我不插入额外值时出现太多值错误?