| DB_KEY | NUMBER | The primary key for the target database. Use this column to join with almost any other catalog view. | 
| DBINC_KEY | NUMBER | The primary key for the incarnation of the target database. Use this column to join with RC_DATABASE_INCARNATION. | 
| DB_NAME | VARCHAR2(8) | The DB_NAMEof the database incarnation to which this record belongs. | 
| CDF_KEY | NUMBER | The primary key of the datafile copy in the recovery catalog. If you issue the LISTcommand while RMAN is connected to the recovery catalog, then this value appears in theKEYcolumn of the output. | 
| RECID | NUMBER | The datafile copy record from V$DATAFILE_COPY.RECIDandSTAMPform a concatenated primary key that uniquely identifies this record in the target database control file. | 
| STAMP | NUMBER | The datafile copy stamp from V$DATAFILE_COPY.RECIDandSTAMPform a concatenated primary key that uniquely identifies this record in the target database control file. | 
| NAME | VARCHAR2(1024) | The filename of the datafile copy. | 
| TAG | VARCHAR2(32) | The tag for the datafile copy. | 
| FILE# | NUMBER | The absolute file number for the datafile. | 
| CREATION_CHANGE# | NUMBER | The creation SCN of the datafile. | 
| CREATION_TIME | DATE | Datafile creation timestamp. | 
| RESETLOGS_CHANGE# | NUMBER | The SCN of the most recent RESETLOGSwhen the datafile was created. | 
| RESETLOGS_TIME | DATE | The time stamp of the most recent RESETLOGSin the datafile header. | 
| INCREMENTAL_LEVEL | NUMBER | The incremental level of the copy: 0orNULL. | 
| CHECKPOINT_CHANGE# | NUMBER | The SCN of the most recent datafile checkpoint. | 
| CHECKPOINT_TIME | DATE | The time of the most recent datafile checkpoint. | 
| ABSOLUTE_FUZZY_CHANGE# | NUMBER | The highest SCN in any block of the file, if known. Recovery must proceed to at least this SCN for the file to become not fuzzy. | 
| RECOVERY_FUZZY_CHANGE# | NUMBER | The SCN to which recovery must proceed for the file to become not fuzzy. If not NULL, this file must be recovered at least to the specified SCN before the database can be opened with this file. | 
| RECOVERY_FUZZY_TIME | DATE | The time that is associated with the RECOVERY_FUZZY_CHANGE#. | 
| ONLINE_FUZZY | VARCHAR2(3) | YES/NO. If set toYES, this copy was made after an instance failure orOFFLINE IMMEDATE(or is a copy that was taken improperly while the database was open). Recovery will need to apply all redo up to the next crash recovery marker to make the file consistent. | 
| BACKUP_FUZZY | VARCHAR2(3) | YES/NO. If set toYES, this is a copy taken using theBEGIN BACKUP/END BACKUPtechnique. To make this copy consistent, the recovery process needs to apply all redo up to the marker that is placed in the redo stream when theALTER TABLESPACE END BACKUPcommand is used. | 
| BLOCKS | NUMBER | The number of blocks in the datafile copy (also the size of the datafile when the copy was made). | 
| BLOCK_SIZE | NUMBER | The size of the blocks in bytes. | 
| COMPLETION_TIME | DATE | The time when the copy completed. | 
| STATUS | VARCHAR2(1) | The status of the copy: A(available),U(unavailable),X(expired), orD(deleted). | 
| KEEP | VARCHAR2(3) | Indicates whether this copy has a retention policy different from the value for CONFIGURE RETENTION POLICY. Possible values areYESandNO. | 
| KEEP_UNTIL | DATE | If the KEEP UNTIL TIMEclause of theCOPYcommand was specified, then this column shows the date after which this datafile copy becomes obsolete. If the column isNULLandKEEP OPTIONSis notNULL, the copy never becomes obsolete. | 
| KEEP_OPTIONS | VARCHAR2(11) | The KEEPoptions specified for this datafile copy. Possible values areNOLOGS,BACKUP_LOGS,LOGS, andNULL.NOLOGSindicates a consistent backup made when the database was mounted.BACKUP_LOGSindicates that the backup was made in open mode, so archived log backups must be applied to make it consistent.LOGSindicates a long-term backup made with theLOGSkeyword, which is now deprecated.NULLindicates that this backup has noKEEPoptions and becomes obsolete based on the retention policy. | 
| SCANNED | VARCHAR2(3) | Whether RMAN scanned the file ( YESorNO). IfYES, then this copy was created by a server process that examined every block in the file, for example, by the RMANCOPYorRESTOREcommand. IfNO, then RMAN did not examine every block in the file, as when RMAN inspects a non-RMAN generated image copy or restores by proxy copy.Whenever RMAN creates or restores a datafile copy, it adds rows to the V$DATABASE_BLOCK_CORRUPTIONview andRC_DATABASE_BLOCK_CORRUPTIONview if it discovers corrupt blocks in the file. If RMAN has scanned the entire file, then the absence of corruption records for this copy means that no corrupt blocks exist in the file. If RMAN did not scan the file, then the absence of corruption records means that corrupt blocks may or may not exist in the file. | 
| IS_RECOVERY_DEST_FILE | VARCHAR2(3) | This datafile copy is located in the fast recovery area: YESorNO. | 
| RSR_KEY | NUMBER | Unique key for the row in RC_RMAN_STATUSthat created this backup piece. | 
| MARKED_CORRUPT | NUMBER | The number of blocks that were discovered to be corrupt during the course of this backup. These blocks were reformatted as known-corrupt blocks in the output image copy. | 
| SITE_KEY | NUMBER | Primary key of the Data Guard database associated with this file. Each database in a Data Guard environment has a unique SITE_KEYvalue. You can useSITE_KEYin a join with theRC_SITEview to obtain theDB_UNIQUE_NAMEof the database. | 
| DB_UNIQUE_NAME | VARCHAR2(512) | The DB_UNIQUE_NAMEof the database incarnation to which this record belongs. All databases in a Data Guard environment share the same DBID but differentDB_UNIQUE_NAMEvalues. The value in this column is null when the database name is not known for a specific file. For example, rows for databases managed by versions of RMAN before Oracle Database 11g are null. | 
| FOREIGN_DBID | NUMBER | Foreign DBID of the database from which this datafile was transported. The value is 0if the file backed up is not a foreign database file. | 
| PLUGGED_READONLY | VARCHAR2(3) | YESif this is a copy of a transported read-only foreign file; otherwiseNO. | 
| PLUGIN_CHANGE# | NUMBER | SCN at which the foreign datafile was transported into the database. The value is 0if this file is not a foreign database file. | 
| PLUGIN_RESETLOGS_CHANGE# | NUMBER | The SCN of the RESETLOGSoperation for the incarnation into which this foreign file was transported. The value is0if this file is not a foreign database file. | 
| PLUGIN_RESETLOGS_TIME | DATE | The time of the RESETLOGSoperation for the incarnation into which this foreign file was transported. The value is0if this file is not a foreign database file. |