介绍
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!
“代码”类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 (学院),references college (id),, foreign key (团队),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 (学院),references college (id),, foreign key (酒店),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,小编将为大家推送更多相关知识点的文章,欢迎关注!