Question

我做了所有安装，也许不确定是否仍然遗漏了一些东西。

我希望Rails与Oracle合作。我所做的是从RubyForge安装oci8。然后是ActiveRecord增强版的Oracle。当我转到rake db:create时，它会改变以安装活动记录oracle增强版本。我再次做了（gem install）而不是运行rake db:create，但又遇到了同样的错误。不确定，可能是什么修复。

=============================================== =======================

以下是database.yml的图像

development:
  adapter: oracle_enhanced
  database: //localhost:1521/dba
  username: re*********
  password: ********

对于活动记录安装，以下是结果集

E:\railstest\script>gem install activerecord-oracle_enhanced-adapter
WARNING:  Error fetching data: SocketError: getaddrinfo: The storage control bl
cks were destroyed.  (http://rubygems.org/latest_specs.4.8.gz)
Successfully installed activerecord-oracle_enhanced-adapter-1.4.1
1 gem installed
Installing ri documentation for activerecord-oracle_enhanced-adapter-1.4.1...
Installing RDoc documentation for activerecord-oracle_enhanced-adapter-1.4.1...

执行localhost：3000 / greetings / hello

时

这是错误的完整痕迹 ActiveRecord :: ConnectionNotEstablished

activerecord (3.2.3) lib/active_record/connection_adapters/abstract/connection_pool.rb:398:in `retrieve_connection'
activerecord (3.2.3) lib/active_record/connection_adapters/abstract/connection_specification.rb:168:in `retrieve_connection'
activerecord (3.2.3) lib/active_record/connection_adapters/abstract/connection_specification.rb:142:in `connection'
activerecord (3.2.3) lib/active_record/query_cache.rb:67:in `call'
activerecord (3.2.3) lib/active_record/connection_adapters/abstract/connection_pool.rb:467:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/callbacks.rb:28:in `call'
activesupport (3.2.3) lib/active_support/callbacks.rb:405:in `_run__31549393__call__4__callbacks'
activesupport (3.2.3) lib/active_support/callbacks.rb:405:in `send'
activesupport (3.2.3) lib/active_support/callbacks.rb:405:in `__run_callback'
activesupport (3.2.3) lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
activesupport (3.2.3) lib/active_support/callbacks.rb:81:in `send'
activesupport (3.2.3) lib/active_support/callbacks.rb:81:in `run_callbacks'
actionpack (3.2.3) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/reloader.rb:65:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
railties (3.2.3) lib/rails/rack/logger.rb:26:in `call_app'
railties (3.2.3) lib/rails/rack/logger.rb:16:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/request_id.rb:22:in `call'
rack (1.4.1) lib/rack/methodoverride.rb:21:in `call'
rack (1.4.1) lib/rack/runtime.rb:17:in `call'
activesupport (3.2.3) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.4.1) lib/rack/lock.rb:15:in `call'
actionpack (3.2.3) lib/action_dispatch/middleware/static.rb:62:in `call'
railties (3.2.3) lib/rails/engine.rb:479:in `call'
railties (3.2.3) lib/rails/application.rb:220:in `call'
rack (1.4.1) lib/rack/content_length.rb:14:in `call'
railties (3.2.3) lib/rails/rack/log_tailer.rb:14:in `call'
rack (1.4.1) lib/rack/handler/webrick.rb:59:in `service'
E:/Ruby187/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
E:/Ruby187/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
E:/Ruby187/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
E:/Ruby187/lib/ruby/1.8/webrick/server.rb:162:in `start'
E:/Ruby187/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'
E:/Ruby187/lib/ruby/1.8/webrick/server.rb:95:in `start'
E:/Ruby187/lib/ruby/1.8/webrick/server.rb:92:in `each'
E:/Ruby187/lib/ruby/1.8/webrick/server.rb:92:in `start'
E:/Ruby187/lib/ruby/1.8/webrick/server.rb:23:in `start'
E:/Ruby187/lib/ruby/1.8/webrick/server.rb:82:in `start'
rack (1.4.1) lib/rack/handler/webrick.rb:13:in `run'
rack (1.4.1) lib/rack/server.rb:265:in `start'
railties (3.2.3) lib/rails/commands/server.rb:70:in `start'
railties (3.2.3) lib/rails/commands.rb:55
railties (3.2.3) lib/rails/commands.rb:50:in `tap'
railties (3.2.3) lib/rails/commands.rb:50
script/rails:6:in `require'
script/rails:6

Answer 1

通过Rake创建Oracle数据库很痛苦。它需要具有可以创建用户的系统或DBA帐户。这需要在database.yml中设置您的DBA密码。在我看来，这是一种不好的做法，应该避免。手动创建数据库。
确保您的database.yml声明了正确的适配器：
```
adapter:  oracle_enhanced
```

Answer 2

yml中的数据库定义对我来说似乎不对... 你应该在tnsnames（你的oracle客户端）中给出你给出的名字

ActiveRecord + Oracle连接问题

2 个答案: