In a log, a DBMS places which of the following?
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 DBMS log typically contains a copy of a record before a change, the actual change, and a copy of the record after the change to ensure data integrity and support recovery processes.

In a Log, a DBMS Places Which of the Following