Question

A transaction in which either all of the database actions occur or none of them do is called:
A.atomic.
B.consistent.
C.isolated.
D.durable.

Answer 1

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Answer 2

Answer:

The answer is option [A] .atomic.

The term "atomicity" refers to the ability to combine several actions into a single logical entity, so that subsequent threads of control accessing the database will either see all changes or none at all.

Explanation:

To avoid various transactions from interfering with one another, transactions are made atomic. This can only occur if many user processes are attempting to access the database simultaneously, such as when a server permits multiple clients to utilize it at once.

The atomic property indicates that a transaction is an undivided unit of execution that either completely carries out its intended function or else has no impact on the database at all; in other words, an atomic transaction leaves the same database state it started with even if it

doesn't fully commit. On the other hand, if an atomic transaction succeeds, the database state it leaves behind contains only the modifications that were computed during that transaction and none of the others.

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