DB_NAME | 
VARCHAR2(8) | 
The DB_NAME of the database incarnation to which this record belongs. | 
DB_KEY | 
NUMBER | 
The primary key for this database in the recovery catalog. Use this column to join with almost any other catalog view. | 
NUM_BACKUPSETS | 
NUMBER | 
Total number of available backup sets recorded in the recovery catalog for this database. | 
OLDEST_BACKUP_TIME | 
DATE | 
Creation time of the oldest available backup set recorded in the recovery catalog for this database. | 
NEWEST_BACKUP_TIME | 
DATE | 
Creation time of the newest available backup set recorded in the recovery catalog for this database. | 
OUTPUT_BYTES | 
NUMBER | 
Sum of sizes of all backup pieces for all available backup sets recorded in the recovery catalog for this database. | 
ORIGINAL_INPUT_BYTES | 
NUMBER | 
Sum of sizes of all input files for all available backup sets recorded in the recovery catalog for this database. | 
ORIGINAL_INPRATE_BYTES | 
NUMBER | 
Average input rate in bytes for the creation of all available backup sets recorded in the recovery catalog for this database. | 
OUTPUT_RATE_BYTES | 
NUMBER | 
Average output rate in bytes for the creation of all available backup sets recorded in the recovery catalog for this database. | 
COMPRESSION_RATIO | 
NUMBER | 
Aggregate compression ratio for all available backup sets recorded in the recovery catalog for this database. | 
ORIGINAL_INPUT_BYTES_DISPLAY | 
VARCHAR2(4000) | 
Total size of all input files stored in all available backup sets recorded in the recovery catalog for this database. | 
OUTPUT_BYTES_DISPLAY | 
VARCHAR2(4000) | 
Same value as OUTPUT_BYTES, but converted to a user-displayable format, for example, 798.01M or 5.25G. | 
ORIGINAL_INPRATE_BYTES_DISPLAY | 
VARCHAR2(4000) | 
Same value as ORIGINAL_INPRATE_BYTES, but converted to a user-displayable format, for example, 798.01M or 5.25G. | 
OUTPUT_RATE_BYTES_DISPLAY | 
VARCHAR2(4000) | 
Same value as OUTPUT_RATE_BYTES, but converted to a user-displayable format, for example, 798.01M or 5.25G. |