Question: We have designed an eBay-like on-line auction database. Please use relational algebra to write queries in order to obtain the requested information. (Note: Every auction

We have designed an eBay-like on-line auction database. Please use relationalalgebra to write queries in order to obtain the requested information. (Note:

We have designed an eBay-like on-line auction database. Please use relational algebra to write queries in order to obtain the requested information. (Note: Every auction listed in the system, sold, expired, or ongoing, is listed in Auction table. Auctions, have been sold out, a re also listed in Sold table.) Item (ltemID, ItemName, Description)

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