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Oracle® Database Reference 10g Release 2 (10.2) Part Number B14237-02 |
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# 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 datafile).

Column | Datatype | Description
--- | --- | ---
`NUM_FILES_BACKED` | `NUMBER` | Number of files backed up for specified criteria
`NUM_DISTINCT_FILES_BACKED` | `NUMBER` | Number of distinct files backed up
`NUM_DISTINCT_TS_BACKED` | `NUMBER` | Number of distinct tablespaces backed up
`MIN_CHECKPOINT_CHANGE#` | `NUMBER` | Minimum checkpoint change number of the datafile for specified criteria
`MAX_CHECKPOINT_CHANGE#` | `NUMBER` | Maximum checkpoint change number of the datafile for specified criteria
`MIN_CHECKPOINT_TIME` | `DATE` | Minimum checkpoint time of the datafile for specified criteria
`MAX_CHECKPOINT_TIME` | `DATE` | Maximum checkpoint time of the datafile for specified criteria
`INPUT_BYTES` | `NUMBER` | Total input bytes of files read
`OUTPUT_BYTES` | `NUMBER` | Total output bytes written
`COMPRESSION_RATIO` | `NUMBER` | Compression ratio
`INPUT_BYTES_DISPLAY` | `VARCHAR2(4000)` | Displayable format for input bytes
`OUTPUT_BYTES_DISPLAY` | `VARCHAR2(4000)` | Displayable format for output bytes