Suppliers(sid: integer, sname: string, address:string)Parts(pid: integer, pname: string, color:…

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 bySuppliers. Write the following queries in SQL:

1) Find the pnames of parts supplied by Acme Widget Suppliers andno one else.2) Find the sids of suppliers who charge more for some partthan the average cost of that part (averaged over all the supplierswho supply that part).3) For each part, find the sname of the supplier who chargesthe most for that part.4) Find the sids of suppliers who supply only red parts.

 

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