Ruby on Rails interview questions
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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
t.timestamps
end
end
end A company database contains the following table, in which id is the primary key:
employees
| 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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