The ability to copy partition data enables database administrators to recover accidentally deleted data from a partition without taking the entire database offline.
Once the need to restore data is discovered, the high-level restoration process is as follows:
1. Locally restore your most recent backup of your production database to a temporary location.
2. Roll forward the after-image files of your production database to your temporary database if your production database is enabled for after-imaging.
3. Move data from the temporary database to your production database.
4. Clean up.
The details of each step are discussed in the sections that follow.