Question: Consider the following schema of a product database: Parts(pid: integer, pname: string, color: string) Suppliers(sid: integer, sname: string, address: string) Catalog(sid: integer, pid:integer, price: real)

Consider the following schema of a product database: Parts(pid: integer, pname: string, color: string) Suppliers(sid: integer, sname: string, address: string) Catalog(sid: integer, pid:integer, price: real) The Catalog records that some Supplier sid supplies Part pid at a given price. Formulate each of the following queries in relational algebra

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