[英]mysql2 in rails3 'table exits already' how to delete that?
我出於某種原因刪除了項目robin_offine,並在重新啟動它並運行時
rake db:create,它聲稱:
robin_offline_development already exists
robin_offline_test already exists
忽略它並添加遷移命名事件
如果rake db:migrate
Mysql2::Error: Table 'events' already exists(cuz i have done that last time)
問題是,我找不到桌子在哪里
SHOW DATABASES;
+--------------------+
| Database |
+--------------------+
| information_schema |
| test |
+--------------------+
2 rows in set (0.00 sec)
甚至不知道要刪除哪一個
抱歉,我是mysql新手
系統是Ubuntu 12.04LTS
development:
adapter: mysql2
encoding: utf8
reconnect: false
database: robin_offline_development
pool: 5
username: root
password:
socket: /var/run/mysqld/mysqld.sock
# Warning: The database defined as "test" will be erased and
# re-generated from your development database when you run "rake".
# Do not set this db to the same as development or production.
test:
adapter: mysql2
encoding: utf8
reconnect: false
database: robin_offline_test
pool: 5
username: root
password:
socket: /var/run/mysqld/mysqld.sock
production:
adapter: mysql2
encoding: utf8
reconnect: false
database: robin_offline_production
pool: 5
username: root
password:
socket: /var/run/mysqld/mysqld.sock
而我的遷移文件正是運行
rails g model events
沒什么特別的
開發日志
Connecting to database specified by database.yml
Connecting to database specified by database.yml
[1m[36m (1.1ms)[0m [1mSELECT `schema_migrations`.`version` FROM `schema_migrations` [0m
Migrating to CreateEvents (20121213091145)
[1m[35m (0.5ms)[0m CREATE TABLE `events` (`id` int(11) DEFAULT NULL auto_increment PRIMARY KEY, `created_at` datetime NOT NULL, `updated_at` datetime NOT NULL) ENGINE=InnoDB
Mysql2::Error: Table 'events' already exists: CREATE TABLE `events` (`id` int(11) DEFAULT NULL auto_increment PRIMARY KEY, `created_at` datetime NOT NULL, `updated_at` datetime NOT NULL) ENGINE=InnoDB
Connecting to database specified by database.yml
[1m[36m (1.1ms)[0m [1mSELECT `schema_migrations`.`version` FROM `schema_migrations` [0m
Migrating to CreateEvents (20121213091145)
[1m[35m (0.5ms)[0m CREATE TABLE `events` (`id` int(11) DEFAULT NULL auto_increment PRIMARY KEY, `created_at` datetime NOT NULL, `updated_at` datetime NOT NULL) ENGINE=InnoDB
Mysql2::Error: Table 'events' already exists: CREATE TABLE `events` (`id` int(11) DEFAULT NULL auto_increment PRIMARY KEY, `created_at` datetime NOT NULL, `updated_at` datetime NOT NULL) ENGINE=InnoDB
Connecting to database specified by database.yml
[1m[36m (1.9ms)[0m [1mSELECT `schema_migrations`.`version` FROM `schema_migrations` [0m
Migrating to CreateEvents (20121213091145)
[1m[35m (0.5ms)[0m CREATE TABLE `events` (`id` int(11) DEFAULT NULL auto_increment PRIMARY KEY, `created_at` datetime NOT NULL, `updated_at` datetime NOT NULL) ENGINE=InnoDB
Mysql2::Error: Table 'events' already exists: CREATE TABLE `events` (`id` int(11) DEFAULT NULL auto_increment PRIMARY KEY, `created_at` datetime NOT NULL, `updated_at` datetime NOT NULL) ENGINE=InnoDB
我剛跑
rake db:drop
並再次進行遷移,一切都恢復正常
和rails db
轉到數據庫並執行您想要的任何操作。
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