mysql基本操作

1.创建表：create table if not exists student(id integer(4) primary key auto_increment,name varchar(10),sex varchar(2));

2.增：insert into student(id,name,sex)values(1,'zhangsan','m');

3.删：delete from student where id=1;

4.改：update student set name='lisi';

5.查： select * from student;