Database: e_commerce
Question: What is the date of all orders that have been placed by customers with at least 2 payment methods?
SQL:
SELECT date_order_placed FROM Orders WHERE customer_id IN ( SELECT T1.customer_id FROM Customers AS T1 JOIN Customer_Payment_Methods AS T2 ON T1.customer_id  =  T2.customer_id GROUP BY T1.customer_id HAVING count(*)  >=  2 )