Database: store_1
Question: Find out the top 10 customers by total number of orders. List customers' first and last name and the number of total orders.
SQL:
SELECT T1.first_name ,  T1.last_name ,  COUNT(*) FROM customers AS T1 JOIN invoices AS T2 ON T2.customer_id  =  T1.id GROUP BY T1.id ORDER BY COUNT(*) DESC LIMIT 10;