activerecord aggiungi colonna
class AddPartNumberToProducts < ActiveRecord::Migration[6.0]
def change
add_column :products, :part_number, :string
end
end
come creare una tabella SQL in ruby
def self.create_table
sql = <<-SQL
CREATE TABLE IF NOT EXISTS IF NOT EXISTS students (
name TEXT,
grade TEXT
)
SQL
DB[:conn].execute(sql)
end