Rails 删除数据库关联记录（外键）

2015/12/10 54607

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drop database Contact;
 
create database Contact;
 
use Contact;
 
CREATE TABLE Employee (
   id  int unsigned not null auto_increment primary key,
   Name VARCHAR(50),
   Phone VARCHAR(15),
   departmentId int
);
 
 
CREATE TABLE Department(
   id    int unsigned not null auto_increment primary key,
   Name VARCHAR(50),
   Phone VARCHAR(15)
    
);