Question: 2. (40 points) Consider the follwing relational schema: SUPPLIERS(sid: int, sname: string, address: string) FOODS(fid: int, fname: string, type: string) CATALOG(fid: int, sid: int, cost:

2. (40 points) Consider the follwing relational schema: SUPPLIERS(sid: int, sname: string, address: string) FOODS(fid: int, fname: string, type: string) CATALOG(fid: int, sid: int, cost: float) The key data fields are underlined. Price of the foods set by the suppliers are given in the catalog field. |A. (10 points) What does the following query compute: Tsname,address((Otupe='Vegetables' FOODS) - CATALOG DA SUPPLIERS) B. (10 points) What does the following TRC compute: { s.sname, s.address | SUPPLIERS (3) AND (NOT ( (3c) (CATALOG (C) AND c.sid. = s.sid AND C.cost = 50 ))) } C. (20 points) Write RA, TRC, and DRC for the query: Retrieve all the fids and sids of food name Cabbage

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