alterdbexam3.txt

ssd7考试exam3,绝对有用~欢迎下载

create table FavoriteTitles
(
titleID 	varchar(20) not null,
customerID 	varchar(20) not null,

primary key(titleID, customerID),
foreign key (titleID) references Book(titleID),
foreign key (customerID) references Custormer(custormID)
);