Part 1: Use the following schema to answer the questions 1-3 below. This schema refers to a gamingorganization. There can be any number of players per game. Each game and each tournament has onewinner; if the game or tournament is ongoing, the winner is null. The gameWinner andtournamentWinner attributes are foreign keys for memberID.Member (memberlD, memberName, joinDate)Game (gamelD, gameType, gameDate, gameWinner, tournamentName)MemberGame (memberlD, gamelD)Tournament (tournamentName, tournamentWinner)1. Write a description of what each of the following queries does:a.SELECT memberID, gamelDFROM Member NATURAL JOIN MemberGame NATURAL JOIN GameWHERE joinDate < "2021-01-01" AND gameDate >= "2021-01-01"b. Write two functionally different relational algebra statements equivalent to the query in1a.C. Which of your answers to question 3 will most likely be processed faster? Justify youranswer.

Solution 1. a) In this query we get all the unique columns of memberId & gameId by joining the…

Answered: Use the following schema to answer the…

Engineering

Computer Science

Use the following schema to answer the questions 1-3 below.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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