In a log, a DBMS places ____.
A) a copy of a record prior to a change
B) the actual change to a record
C) a copy of a record after a change
D) all of the above

Question

Quizplus · Accepted Answer

A log in a DBMS typically includes a copy of a record prior to a change, the actual change made to the record, and a copy of the record after the change has been applied. This allows for easy identification and reversal of any incorrect or unwanted changes made to the database. Therefore, all of the above options are included in a DBMS log.

In a Log, a DBMS Places ____