prova
codice:SELECT * FROM registrazione where `data` ='2018-10-22' and idautista IN (SELECT idautista FROM registrazione where `data` ='2018-10-22' GROUP BY `idautista` HAVING count(*)>1)
prova
codice:SELECT * FROM registrazione where `data` ='2018-10-22' and idautista IN (SELECT idautista FROM registrazione where `data` ='2018-10-22' GROUP BY `idautista` HAVING count(*)>1)