icite the following queries (in SQL only), based on the database schema Product (maker, model, type) PC (model, speed, ram, hd, price) Laptop(model, speed, ram, hd, screen, price) Printer(model, color, type, price) Write a query that will produce information about al1 products (PC, laptops, and printers) including their manufacturer if available, and whatever inormation about that product is relevant (i in the relation for that type of product)