获取rails相关模型的所有数据

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I have one User model and StudentProfile model associations are

class User < ApplicationRecord
  has_one :student_profile 
end

class StudentProfile < ApplicationRecord
  belongs_to :user 
end

我想呈现两个表的所有字段。该操作的SQL命令是

select * from users join student_profiles on student_profiles.user_id = users.id

但

User.joins(:student_profile)

shows only the fields of User table.

有什么方法可以在活动记录查询中实现此sql？

select * from users join student_profiles on student_profiles.user_id = users.id