BTYPE | 
CHAR(9) | 
The backup type container, which can be BACKUPSET, IMAGECOPY or PROXYCOPY. | 
BTYPE_KEY | 
NUMBER | 
Unique identifier for the backup type. If BTYPE is BACKUPSET, this value is the BS_KEY value for the backup set. If BTYPE is IMAGECOPY, this value is the value of COPY_KEY for the copy. | 
SESSION_KEY | 
NUMBER | 
Session identifier. Use in joins with RC_RMAN_OUTPUT. | 
SESSION_RECID | 
NUMBER | 
Together with SESSION_STAMP, uniquely identifies output for this backup job from RC_RMAN_OUTPUT. | 
SESSION_STAMP | 
NUMBER | 
Together with SESSION_RECID, uniquely identifies output for this backup job from RC_RMAN_OUTPUT. | 
DB_KEY | 
NUMBER | 
The primary key for this database. | 
DB_NAME | 
VARCHAR2(8) | 
The DB_NAME of the database incarnation to which this record belongs. | 
ID1 | 
NUMBER | 
For backups taken as backup sets, this column contains SET_STAMP. For proxy copy or image copy backups, this column contains the RECID from the control file. | 
ID2 | 
NUMBER | 
For backups taken as backup sets, this column contains SET_COUNT. For proxy copy or image copy backups, this column contains STAMP. | 
FILE# | 
NUMBER | 
The number of this datafile. | 
CREATION_CHANGE# | 
NUMBER | 
The checkpoint SCN at the time that this datafile was created. | 
CREATION_TIME | 
DATE | 
The time at which this datafile was created. | 
RESETLOGS_CHANGE# | 
NUMBER | 
The checkpoint SCN of the most recent RESETLOGS operation affecting this datafile. | 
RESETLOGS_TIME | 
DATE | 
The time of the most recent RESETLOGS operation affecting this datafile | 
INCREMENTAL_LEVEL | 
NUMBER | 
For incremental backups, the level of the incremental backup (0 or 1). Otherwise, NULL. | 
INCREMENTAL_CHANGE# | 
NUMBER | 
For incremental backups, the incremental backup SCN. Otherwise, NULL. | 
CHECKPOINT_CHANGE# | 
NUMBER | 
The current checkpoint SCN for the datafile at the time it was backed up. | 
CHECKPOINT_TIME | 
DATE | 
The time corresponding to the current checkpoint SCN for the datafile at the time it was backed up. | 
MARKED_CORRUPT | 
NUMBER | 
Number of datafile blocks marked corrupt. | 
FILESIZE | 
NUMBER | 
The size of the datafile at the time it was backed up. | 
COMPRESSION_RATIO | 
NUMBER | 
Compression ratio for this backup. | 
TS# | 
NUMBER | 
Tablespace number. | 
TSNAME | 
VARCHAR2(30) | 
The name of the tablespace containing this datafile. | 
FILESIZE_DISPLAY | 
VARCHAR2(4000) | 
Same value as FILESIZE, but converted to a user-displayable format, for example nM, nG, nT, nP. |