ค้นหาชื่อลูกค้าและวันที่ของคำสั่งซื้อที่มีสถานะ "จัดส่งแล้ว"
Find the customer name and date of the orders that have the status "Delivered".
df_customer_orders = pd.DataFrame(columns=['order_date', 'customer_id']) ; df_customers = pd.DataFrame(columns=['customer_name', 'customer_id' ])
df_customers[df_customers['customer_id'].isin(df_customer_orders[df_customer_orders['order_status']=='Delivered']['customer_id'])][['customer_name','order_date']]