An order only stores ids: the buyer's user_id and the product_id. To produce a readable order list you must join three tables: orders, users and products.
Write a query returning the buyer's name as user_name, the product's name as product_name, and the order's quantity.
user_name, product_name, quantityusers.name and products.name need aliases because the names collideStart from orders and add one JOIN ... ON per table.
Both users and products have a name column; give each output column a distinct alias.
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