Several SQL operations are performed by User 1 to access the Fee information for Bowling in the Act_Fee relation (shown
Posted: Sat Jul 23, 2022 7:29 pm
Several SQL operations are performed by User 1 to access the Fee information for Bowling in the Act_Fee relation (shown in the exhibit). The first access returns a fee of 50. An unrelated SQL operation by another user updates the Bowling fee to 60. The second access by User 1 returns a fee of 60. What problem has occurred?
A. Rollback
B. Deadlock
C. Dirty read
D. No problem has occurred.
A. Rollback
B. Deadlock
C. Dirty read
D. No problem has occurred.