codice:select * from tabella where extract(year_month from campo_data) between extract(year_month from curdate()-interval 2 month) and extract(year_month from curdate()-interval 1 month)
codice:select * from tabella where extract(year_month from campo_data) between extract(year_month from curdate()-interval 2 month) and extract(year_month from curdate()-interval 1 month)