how to change column in db rails code example

Example 1: change column rails example

def change
    change_column(:table_name, :column_name, :new_type)
end

Example 2: rename column in db rails

rails generate migration rename_title_to_name_in_tasks

Example 3: rename column in db rails

class RenameTitleToNameInTasks < ActiveRecord::Migration[6.0]
  def up
    rename_column :tasks, :title, :name
  end

  def down
    rename_column :tasks, :name, :title
  end
end