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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Above two transcation are hitting the DBMS rougly 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:
Tl: BEGIN TRANSACTION
Xbox_Games SET price=22 WHERE name='ok_game'
0)
S1: UPDATE
S2: INSERT INTO Xbox_Games VALUES ( Another_Game',
S3: UPDATE Xbox_Games SET price=38 WHERE name=' ok_game'
COMMIT;
T2: BEGIN TRANSACTION
sS: SELECT AVG(price) AS average_price FROM Xbox_Games
COMMIT;
Above two transactions are hitting the DBMS roughly at the same time. What are the possible
values for average_price?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb5ac08f7-42c3-4170-80a5-c0dc5b612826%2Fb47fceee-ac85-4ad0-85f0-63fd01e27202%2Frrdub1_processed.jpeg&w=3840&q=75)
Transcribed Image Text: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:
Tl: BEGIN TRANSACTION
Xbox_Games SET price=22 WHERE name='ok_game'
0)
S1: UPDATE
S2: INSERT INTO Xbox_Games VALUES ( Another_Game',
S3: UPDATE Xbox_Games SET price=38 WHERE name=' ok_game'
COMMIT;
T2: BEGIN TRANSACTION
sS: SELECT AVG(price) AS average_price FROM Xbox_Games
COMMIT;
Above two transactions are hitting the DBMS roughly at the same time. What are the possible
values for average_price?
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