Мы ответим на Ваши вопросы
Для пылесосов
select st1+st2+st3+st4+st5 as count, st5 as sklad 0 as stor from catalog_params where idt=375 limit 1
select st1+st2+st3+st4+st5 as count, st5 as sklad 0 as stor from catalog_params where idt=16579 limit 1
select st1+st2+st3+st4+st5 as count, st5 as sklad 0 as stor from catalog_params where idt=16579 limit 1
