数据结构（Java版）-学生成绩管理系统

create database db_student; use db_student; drop table student; create table stuinfo( id varchar(20), name varchar(20), class varchar(20), chinese int(8), math int(8), english int(8), avg_grade int(8), sum_grade int(8) ); create database db_student; use db_student; create table stuinfo( id varchar(20) primary key, name varchar(20), class varchar(20), chinese int(8), math int(8), english int(8), avg_grade int(8), sum_grade int(8)); insert into stuinfo values('857205','Rolin','572',57 69, 54);