Database: e_commerce
Question: How many number of products does each gender of customers buy? List the gender and the number
SQL:
SELECT T1.gender_code ,  count(*) FROM Customers AS T1 JOIN Orders AS T2 ON T1.customer_id  =  T2.customer_id JOIN Order_items AS T3 ON T2.order_id  =  T3.order_id GROUP BY T1.gender_code