-- https://docs.oracle.com/en/database/oracle/oracle-database/23/sqlrf/Comments.html
SELECT  /*+ ORDERED */ o.order_id, c.customer_id, l.unit_price * l.quantity
  FROM customers c, order_items l, orders o
  WHERE c.cust_last_name = 'Taylor'
    AND o.customer_id = c.customer_id
    AND o.order_id = l.order_id;