Question

获得ERROR 1005（HY000）：无法创建表格＆＃39; at.memdetails＆＃39; （错误：150）

create table members 
(UserId varchar(5) primary key, 
Name varchar(30) not null, 
UserName varchar(15) not null unique, 
pwd varchar(20) not null);


create table MemDetails (user_id varchar(5) primary key, 
mobileNo bigint not null unique, 
Email varchar(20) not null, 
City varchar(20) not null, 
State varchar(20) not null, 
constraint FKey1 foreign key (user_id) 
references members(user_id) 
on delete cascade);

Answer 1

使用以下代码创建第二个表：

create table MemDetails (user_id varchar (5) primary key)
mobileNo BIGINT NOT NULL UNIQUE, 
Email VARCHAR(20) NOT NULL,
City VARCHAR(20) NOT NULL,
State VARCHAR(20) NOT NULL, 
CONSTRAINT FKey1 FOREIGN KEY (user_id) 
REFERENCES members(UserId) ON DELETE CASCADE);

MySQL：无法使用FK获取表（错误150）

1 个答案: