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;
感谢各位的阅读,以上就是“数据库SQL语句的使用”的内容了,经过本文的学习后,相信大家对数据库SQL语句的使用这一问题有了更深刻的体会,具体使用情况还需要大家实践验证。这里是亿速云,小编将为大家推送更多相关知识点的文章,欢迎关注!