Question: Consider this schema used in the course slides with constraints. The attribute pname is the key for Product, the attribute cid is the key

Consider this schema used in the course slides with constraints. The attribute

 

Consider this schema used in the course slides with constraints. The attribute pname is the key for Product, the attribute cid is the key for Company, and Product.cid is a foreign key for Company.cid. Also assume no attributes can contain null values (that is, all attributes are declared to be not null). Product (pname, price, cid) Company (cid, cname, city) Product(cid) Company(cid) Write an SQL query to find products produced by companies in exactly two cities. Return the product pname and its price.

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