*検索(SELECT) **SELECT * FROM people; peopleにはPersonオブジェクが格納された配列で返される。 >people = Person.find :all **SELECT * FROM people LIMIT 1; >person = Person.find :first **SELECT * FROM people WHERE id = 1; >people = Person.find :all, :conditions=>["id=?",1] >people = Person.find :all, :conditions=>["id=:id",{:id=>1}] **SELECT * FROM people ORDER BY id DESC; >people = Person.find :all, :order=>"id DESC" **SEL
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