Which of the following refers to the problem that exists in database applications when two users update the same data item, but only one of those changes is recorded?
A)lost-update problem
B)crow's-foot paradigm
C)bullwhip effect
D)update query problem

Question

Quizplus · Accepted Answer

The lost-update problem occurs in a database when multiple users attempt to update the same data item at the same time, but only one of those changes is recorded, and the other change is lost or overwritten. This problem can be prevented through the use of concurrency control techniques such as locking or time-stamping. The other answer choices are not related to this issue.

Which of the Following Refers to the Problem That Exists