Multiple choice technology databases

When performing an incomplete recovery of the whole database, what must be true about the data files that are restored ?

  1. All of the data files must be from a backup taken prior to the point in time to which you want to recover.

  2. Only the data files belonging from the SYSTEM tablespace must be from a backup taken prior to the point in time to which you want to recover.

  3. Only the data files that need recovery must be from a backup taken prior to the point in time which you want to recover.

  4. Only the data files belonging to the SYSTEM tablespace and the data files that need recovery must be from a backup taken prior to the point in time to which you want to recover.

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Incomplete database recovery requires ALL data files to be from backups taken before the target recovery point. This ensures consistent database state across all tablespaces - you cannot recover partially or use files from different time periods, as this would create database inconsistencies.