日期:2014-05-18 浏览次数:20834 次
--创建一个course1
create table course1
(
cno char(4) primary key,
cname char(40),
cpno char(4),
ccredit smallint
);
go
--创建一个course2的外键为course1的cno
create table course2
(
cno char(4) primary key ,
cname char(40) ,
cpno char(4) ,
ccredit smallint ,
foreign key ( cpno ) references course1 ( cno )
) ;
------解决方案--------------------
Cpno少了小括号
create table Course
(
Cno char(4) primary key,
Cname char(40),
Cpno char(4),
Ccredit smallint,
foreign key (Cpno) references Course(Cno)
);