8.93 V$BACKUP_DATAFILE_SUMMARY
V$BACKUP_DATAFILE_SUMMARY provides summary information for a specific criteria set, based on a backup job, a time range applicable to jobs, or a specific data file).
               
| Column | Datatype | Description | 
|---|---|---|
| 
 | 
 | Number of files backed up for specified criteria | 
| 
 | 
 | Number of distinct files backed up | 
| 
 | 
 | Number of distinct tablespaces backed up | 
| 
 | 
 | Minimum checkpoint change number of the data file for specified criteria | 
| 
 | 
 | Maximum checkpoint change number of the data file for specified criteria | 
| 
 | 
 | Minimum checkpoint time of the data file for specified criteria | 
| 
 | 
 | Maximum checkpoint time of the data file for specified criteria | 
| 
 | 
 | Total input bytes of files read | 
| 
 | 
 | Total output bytes written | 
| 
 | 
 | The ratio between the total blocks in the datafile and the blocks that RMAN backed up. This is not the the ratio from the  | 
| 
 | 
 | Displayable format for input bytes | 
| 
 | 
 | Displayable format for output bytes | 
| 
 | 
 | The ID of the container to which the data pertains. Possible values include: 
 |