V$BACKUP_SPFILE_DETAILS displays information about all restorable SP files backed up in the backup set.
| Column | Datatype | Description | 
|---|---|---|
SESSION_KEY | 
NUMBER | 
Session identifier | 
SESSION_RECID | 
NUMBER | 
Session recid | 
SESSION_STAMP | 
NUMBER | 
Session stamp | 
BS_KEY | 
NUMBER | 
Unique backup set identifier | 
SET_STAMP | 
NUMBER | 
Backup set stamp | 
SET_COUNT | 
NUMBER | 
Backup set count | 
MODIFICATION_TIME | 
DATE | 
Time the backup set was modified | 
FILESIZE | 
NUMBER | 
Size, in bytes, of the SPFILE that was backed up | 
FILESIZE_DISPLAY | 
VARCHAR2(4000) | 
Same value as the FILESIZE column, but converted to a user-displayable format, for example nM, nG, nT, nP, and so on |