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sequel で first / last
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| require 'rubygems' | |
| require 'sequel' | |
| require 'pp' | |
| DB = Sequel.sqlite('photo.db') | |
| dataset = DB[:photos] | |
| pp dataset.first | |
| # dataset.first は order by がなくてもうまくいが dataset.last は order を指定してないと怒られる理不尽仕様 | |
| pp dataset.order_by(:date_time_original).last |
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