Oracle Database Administration from Zero to Hero - Performing Incremental Backups (2 of 3)

The video tutorial explains how to use RMAN to create incremental backups, including differential and cumulative types. It introduces incrementally updated backups, which apply incremental backups to image copies, saving time and resources. The tutorial outlines the procedure for implementing this method, emphasizing the importance of using consistent tags. A code example demonstrates the process, highlighting the benefits of faster recovery and backup times.

What happens if you try to create a level 1 incremental backup without an existing level 0 backup?

• RMAN will prompt for a level 0 backup.

• The command will fail.

• RMAN will create a level 0 backup instead.

• RMAN will create a level 1 backup anyway.

What is a key benefit of using incrementally updated backups?

• They are faster than differential backups.

• They eliminate the need for redo logs.

• They require no initial image copy.

• They reduce recovery time compared to traditional image copies.

What is the first step in implementing incrementally updated backups?

• Apply incremental backups to the image copy.

• Set a tag on the incremental backup.

• Create a level 0 image copy as a base.

• Create a level 1 differential backup.

What does the 'backup for recover of copy' command do?

• Creates a full backup of the database.

• Deletes old backup files.

• Creates a level 1 differential backup with the same tag as the level 0 image copy.

• Recovers the database to the last backup point.

What is the role of tags in incrementally updated backups?

• They are optional and used for documentation purposes.

• They are used to label backup files for easy identification.

• They help in applying the correct incremental backup to the correct image copy.

• They are used to compress backup files.

Why is it important to use the same tag on recover and backup commands?

• To reduce the size of the backup files.

• To apply the correct incremental backup to the correct image copy.

• To ensure backups are stored in the same location.

• To speed up the backup process.

What happens on day one of the code example execution?

• A level 1 incremental backup is created.

• The backup command fails due to missing image copy.

• The recover command applies changes to the image copy.

• A level 0 image copy is created.