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(24 points) Q3. Consider the following schema: Suppliers(sid: integer, sname: string, address: string) Parts(pid: integer, pname: string, color: string) Catalog(sid: integer, pid: integer, cost: real)

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(24 points) Q3. Consider the following schema: Suppliers(sid: integer, sname: string, address: string) Parts(pid: integer, pname: string, color: string) Catalog(sid: integer, pid: integer, cost: real) The Catalog relation lists the prices charged for parts by Suppliers. Write the following queries in SQL: 1. Find the snames of suppliers who supply every part. 2. Find the sid s of suppliers who supply only green parts. 3. Find the sid s of suppliers who supply a red part and a green part

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