A series of actions to be taken on the database such that either all actions are completed successfully,or none of them can be completed,is known as a:
A)checkpoint.
B)log.
C)lock.
D)transaction.
E)concurrent.

Question

Quizplus · Accepted Answer

A transaction is a set of related actions that are treated as a single unit of work. The set of actions either all occur or none occur, ensuring consistency of the data in the database. Checkpoints, logs, locks, and concurrency control are all related concepts, but they do not encompass the concept of a series of actions that must all succeed or fail together.

A Series of Actions to Be Taken on the Database