Ruby on Rails interview questions

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1. Contacts Migration
Ruby on Rails Database migrations Public

Select all statements that are correct after the following migration has been executed:

class ContactsMigration < ActiveRecord::Migration
  def change
    create_table :contacts do |t|
      t.string :name
      t.integer :telephone_number
      t.text :address, null: false
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2. Employee Search
Ruby on Rails Database abstraction Public

A company database contains the following table, in which id is the primary key:


id name age
1 Steve 21
2 John 44
3 Amy 26
4 Marcus 44

Select all the statements that return only the employee with name "John" (id = 2).

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