with t1 as ( select order_id,category_id,order_amount,order_date from order_details where order_date between '2024-01-01' and '2024-06-30' ) select category_id,sum(order_amount) total_sales, sum(if(customer_gender='男',1,0)) male_customers, sum(if(customer_gender='女',1,0)) female_customers from t1 jo...