Which problem occurs when a concurrent process reads data that was not committed to the database?
A)lost update
B)dirty read
C)incorrect summary
D)resource lock

Question

Quizplus · Accepted Answer

When a concurrent process reads uncommitted data, it is known as a dirty read. This can lead to inconsistencies and incorrect results since the data may be updated or deleted before it is officially committed to the database. Lost update occurs when two concurrent transactions try to update the same data at the same time and one overwrites the changes made by the other. Incorrect summary occurs when the summary data is inaccurate or outdated due to concurrent updates. Resource lock occurs when multiple transactions try to access the same resource at the same time, leading to a deadlock.

Which Problem Occurs When a Concurrent Process Reads Data That