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 FILESIZEcolumn, but converted to a user-displayable format, for examplenM,nG,nT,nP, and so on |