SELECT 'PD' || to_char(NOW(), 'YYYYMMDD') || '-' || LPAD(nextval('seq_patrol_device')::text, 4, '0') SELECT status, COUNT(*) as count FROM patrol_device GROUP BY status SELECT device_type, COUNT(*) as count FROM patrol_device GROUP BY device_type SELECT * FROM patrol_device WHERE status != 'maintenance' AND (last_maintenance_date IS NULL OR last_maintenance_date < NOW() - (#{days} || ' days')::INTERVAL) ORDER BY last_maintenance_date ASC NULLS FIRST UPDATE patrol_device SET status = #{status}, updated_at = NOW() WHERE id = #{id}