create database JXGL;
go
create table S(
sno char(10)primary key not null,
sname nvarchar(10) not null,
sex char(2)not null,
birth smalldatetime not null,
homadd nvarchar(40),
endate smalldatetime,
dno char(10)
)
go
create table C(
cno char(10) primary key not null,
cname nchar(20) not null,
credit tinyint not null,
cpno char(10),
tperiod tinyint,
bno char(10)
)
go
create table SC(
sno char(10) not null,
cno char(10) not null,
grade tinyint not null,
time char(10) not null,
primary key(sno,cno),
foreign key (sno) references s(sno),
foreign key (cno) references c(cno)
)
go
create table Dept(
dno char(10) primary key,
dname char(20) not null,
dheader nvarchar(8) not null,
snum tinyint
)
go
create table Book(
bno char(10) primary key,
bname varchar(30) not null,
bcp varchar(30) not null,
author nvarchar(8),
price numeric(5,1)
)