被rails排擠的DB adapter

受害者有Oracle、SQLServer、Sybase，以後要記得用gem安裝，不要出錯傻傻查半天。

gem install activerecord-oracle-adapter
gem install activerecord-sqlserver-adapter
gem install activerecord-sybase-adapter

其它可以安裝的adapter：

gem install activerecord-firebird-adapter
gem install activerecord-frontbase-adapter
gem install activerecord-openbase-adapter