從ActiveRecord :: Base.connection.execute的結果中刪除列名稱

Question

我收到了列名爲的密鑰的響應，但我不需要它。如何獲得沒有列名稱的響應。

這是我不需要的關鍵：時間，高，低，...

我需要的只是結果值。

我得到的結果通過ActiveRecord::Base.connection.execute(q_cmd)

{"time"=>"2014-01-02 01:14:00", "high"=>"2360", "low"=>"2360", "open"=>"2360", "close"=>"2360", "volume"=>"9"}{"time"=>"2014-01-02 01:14:01", "high"=>"0", "low"=>"0", "open"=>"0", "close"=>"0", "volume"=>"0"}{"time"=>"2014-01-02 01:14:02", "high"=>"0", "low"=>"0", "open"=>"0", "close"=>"0", "volume"=>"0"}{"time"=>"2014-01-02 01:14:03", "high"=>"0", "low"=>"0", "open"=>"0", "close"=>"0", "volume"=>"0"}{"time"=>"2014-01-02 01:14:04", "high"=>"0", "low"=>"0", "open"=>"0", "close"=>"0", "volume"=>"0"} 

Answer 1

結果是一個Hash，你可以調用它values：

res = ActiveRecord::Base.connection.execute(q_cmd) 
res.values 

這會給你一個數組只值！

參考文檔：Hash#values。