sqlerror1215
create table Artist
(
id INT auto_increment primary key,
name char(20),
birthday date,
sex char(2),
imdbnumber char(9),
introduction varchar(100)
);
create table Movie
(
id INT auto_increment primary key,
name char(20),
releasedate date,
duration int,
language char(8),
introduction varchar(100)
);
create table Participation
(
id INT auto_increment primary key,
artistid int,
movieid int,
rolename char(20),
foreign key(artistid) references Arist(id),
foreign key(movieid) references Movie(id)
);
它一直报错code error 1215,这是为什么