从远程服务器下载mysql dump后出现未知数据库错误

Question

我以此下载了远程mysql转储

mysqldump -u username -p -h remote.site.com DBNAME > backup.sql

之后，当我尝试启动服务器时出现错误：

`rescue in mysql2_connection': Unknown database 'my_database' (ActiveRecord::NoDatabaseError)

我是否需要将下载的转储明确地移到某个地方，或者足以将其下载到主目录中？

config / database.yml

default: &default
adapter: mysql2
encoding: utf8
pool: 5
username: root
password: root
socket: /var/run/mysqld/mysqld.sock

development:
 <<: *default
database: my_database

test:
<<: *default
database: my_database_test

production:
<<: *default
database: my_database_37

Answer 1

我知道您想将转储的数据库导入本地环境。首先，让我们创建数据库

rails db:create # or rake db:create previous rails 5

然后，导入您的转储

mysql -u username -p dbname < backup.sql