What is the payment method code used by the most orders?
CREATE TABLE INVOICES (payment_method_code VARCHAR)
SELECT payment_method_code FROM INVOICES GROUP BY payment_method_code ORDER BY COUNT(*) DESC LIMIT 1
### Context: CREATE TABLE INVOICES (payment_method_code VARCHAR) ### Question: What is the payment method code used by the most orders? ### Answer: SELECT payment_method_code FROM INVOICES GROUP BY payment_method_code ORDER BY COUNT(*) DESC LIMIT 1