| DB_KEY | NUMBER | The primary key for this database. | 
| DB_NAME | VARCHAR2(8) | The DB_NAMEof the database incarnation to which this record belongs. | 
| NUM_COPIES | NUMBER | Number of copies created by all proxy copy operations for this database. | 
| NUM_DISTINCT_COPIES | NUMBER | Number of distinct copies created by all proxy copy operations for this database. | 
| MIN_CHECKPOINT_CHANGE# | NUMBER | Minimum checkpoint SCN among any proxy copies for this database. | 
| MAX_CHECKPOINT_CHANGE# | NUMBER | Maximum checkpoint SCN among any proxy copies for this database. | 
| MIN_CHECKPOINT_TIME | DATE | The oldest checkpoint time among any proxy copies for this database. | 
| MAX_CHECKPOINT_TIME | DATE | The most recent checkpoint time among any proxy copies for this database. | 
| OUTPUT_BYTES | NUMBER | Sum of sizes of all output files generated by proxy copies. | 
| OUTPUT_BYTES_DISPLAY | VARCHAR2(4000) | Same value as OUTPUT_BYTES, but converted to a user-displayable format, for examplenM, nG, nT, nP. |