数据库SQL语句的使用

这篇文章主要讲解了"数据库SQL语句的使用"，文中的讲解内容简单清晰，易于学习与理解，下面请大家跟着小编的思路慢慢深入，一起来研究和学习"数据库SQL语句的使用"吧！

1、创建数据库create database if not exists cs2013;2、创建数据库表格create table if not exists comp (        id int not null primary key auto_increment ,        pid varchar(30) not null unique ,        cname varchar(30) not null ,        ename varchar(30) not null ,        grade varchar(30) not null ,         sex int not null ,        clothe varchar(15) not null)default charset = utf8;create table if not exists team (        id int not null primary key auto_increment ,        cname varchar(30) not null ,        ename varchar(30) not null ,        coach0 int not null ,         coach2 int not null ,        stu0 int not null ,        stu1 int not null ,        stu2 int not null ,        isgirls int not null ,        email varchar(30) not null ,        phone varchar(15) not null ,        foreign key (coach0) references comp(id) ,        foreign key (coach2) references comp(id) ,        foreign key (stu0) references comp(id) ,        foreign key (stu1) references comp(id) ,        foreign key (stu2) references comp(id))default charset = utf8;create table if not exists college (        id int not null primary key auto_increment,        cname varchar(30) not null ,        ename varchar(30) not null ,        teamcnt int not null)default charset = utf8;create table if not exists rc (        id int not null primary key auto_increment ,        college int not null ,        team int not null ,        date date not null ,        foreign key (college) references college (id) ,        foreign key (team) references team (id))default charset = utf8;create table if not exists room (        id int not null primary key auto_increment,        name varchar(30) not null ,        totcnt int not null ,        regcnt int not null ,        price double not null)default charset = utf8;create table if not exists hotel (        id int not null primary key auto_increment,        name varchar(30) not null ,        room0 int not null ,        room1 int not null ,        room2 int not null ,        foreign key (room0) references room (id) ,        foreign key (room1) references room (id) ,        foreign key (room2) references room (id))default charset = utf8;create table if not exists rh (        id int not null primary key auto_increment,        college int not null ,        hotel int not null ,        date date not null ,        foreign key (college) references college (id) ,        foreign key (hotel) references hotel (id))default charset = utf8;

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