What are the names of customers who have both savings and checking accounts?
SELECT cust_name FROM customer WHERE acc_type  =  'saving' INTERSECT SELECT cust_name FROM customer WHERE acc_type  =  'checking'
SELECT cust_name FROM customer WHERE acc_type  =  'saving' INTERSECT SELECT cust_name FROM customer WHERE acc_type  =  'checking'
[{'Nenhum': 'Nenhum resultado encontrado'}]