AWS SDK for Ruby
Developer Guide

Getting Information about All Amazon RDS Parameter Groups

The following example lists the names and descriptions of all of your Amazon RDS parameter groups in the us-west-2 region.

require 'aws-sdk-rds' # v2: require 'aws-sdk' rds = Aws::RDS::Resource.new(region: 'us-west-2') rds.db_parameter_groups.each do |p| puts p.db_parameter_group_name puts ' ' + p.description end