如何將MS SQL數據庫連接到Ruby

Question

我正在嘗試將MS SQL數據庫連接到我的Ruby程序，以運行只讀查詢。 我嘗試使用Sequel，Ruby-DBI和TinyTDS無濟於事。

這是我與Sequel連接的代碼：

require 'rubygems'
require 'sequel'

hostname = 'DB name'
username = 'username here'
password = 'password here'
port = 1433

connection_instance = Sequel.connect(:host => hostname, :user => username, :password => password, :test => true) 

這是我收到的錯誤：

C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
: LoadError: cannot load such file -- sequel/adapters/ (Sequel::AdapterNotFound)

        from C:/Ruby22-x64/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in `require'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/sequel-4.35.0/lib/sequel/database/connecting.rb:98:in `load_adapter'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/sequel-4.35.0/lib/sequel/database/connecting.rb:28:in `adapter_class'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/sequel-4.35.0/lib/sequel/database/connecting.rb:56:in `connect'
        from C:/Ruby22-x64/lib/ruby/gems/2.2.0/gems/sequel-4.35.0/lib/sequel/core.rb:108:in `connect'
        from snippet.rb:11:in `<main>'

Answer 1

我使用tinytds與：

      @db = Sequel.tinytds(
        :host     =>  options['dbserver'], 
        :database=> options['db'],      
        :user       => options['dbuser'],
        :password=> options['dbpwd'],
        #:timeout => options['timeout'], #for long lasting requests
      )              

過去我使用了ado，但是使用ado時遇到了一些問題（編碼錯誤，超時...）