创建数据库：create database td character set =utf8；use database td；//在数据库td中创建表
create table tb_student (<br />Student_ID int auto_increment primary key, <br />Student_Name varchar(20), <br />Sex char(1), <br />Birthday varchar(10)<br />) engine=innodb default character set =utf8 auto_increment =100;//指定存储引擎和字符集 create table tb_subject (<br />Subject_ID int auto_increment primary key, <br />Subject_Name varchar(50)<br />) engine=innodb default character set =utf8;<br /><br />create table tb_score (<br />ID int auto_increment primary key,<br />Student_ID int,<br />Subject_ID int,<br />Score decimal(10,2),<br />foreign key (Student_ID) references tb_student(Student_ID),//外键<br />foreign key (Subject_ID) references tb_subject(Subject_ID)<br />) engine=innodb default character set =utf8;
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