Consider the following table Xbox Games(name, price) and assume that these values already exist in the database ('ok game', 40), ('good game', 50), ('AWESOME_game', 60). We have the following two transactions: T1: BEGIN TRANSACTION Xbox_Games SET price=22 WHERE name=' ok_game' S2: INSERT INTO Xbox_Games VALUES ('Another_Game', 0) S3: UPDATE Xbox_Games SET price=38 WHERE name=' ok_game' S1: UPDATE СOMMIT; T2: BEGIN TRANSACTION sS: SELECT AVG(price) AS average_price FROM Xbox__Games СOMMIT; Above two transactions are hitting the DBMS roughly at the same time. What are the possible values for average_price?

Consider the following table Xbox Games(name, price) and assume that these values already exist in the database ('ok game', 40), ('good game', 50), ('AWESOME_game', 60). We have the following two transactions: T1: BEGIN TRANSACTION Xbox_Games SET price=22 WHERE name=' ok_game' S2: INSERT INTO Xbox_Games VALUES ('Another_Game', 0) S3: UPDATE Xbox_Games SET price=38 WHERE name=' ok_game' S1: UPDATE СOMMIT; T2: BEGIN TRANSACTION sS: SELECT AVG(price) AS average_price FROM Xbox__Games СOMMIT; Above two transactions are hitting the DBMS roughly at the same time. What are the possible values for average_price?

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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