| DB_KEY | NUMBER | The primary key for this database in the recovery catalog. Use this column to form a join with almost any other catalog view. | 
| DBINC_KEY | NUMBER | The primary key for the incarnation of the target database. Use this column to form a join with RC_DATABASE_INCARNATION. | 
| DB_NAME | VARCHAR2(8) | The DB_NAMEof the database incarnation to which this record belongs. | 
| TS# | NUMBER | The number of the tablespace to which the datafile belongs. The TS#may exist multiple times in the same incarnation if the tablespace is dropped and re-created. | 
| TABLESPACE_NAME | VARCHAR2(30) | The tablespace name. The name may exist multiple times in the same incarnation if the tablespace is dropped and re-created. | 
| FILE# | NUMBER | The absolute file number of the datafile. The same datafile number may exist multiple times in the same incarnation if the datafile is dropped and re-created. | 
| CREATION_CHANGE# | NUMBER | The SCN at datafile creation. | 
| CREATION_TIME | DATE | The time of datafile creation. | 
| DROP_CHANGE# | NUMBER | The SCN recorded when the datafile was dropped. If a new datafile with the same file number is discovered then the DROP_CHANGE#is set toCREATION_CHANGE#for the datafile; otherwise the value is set toRC_CHECKPOINT.CKP_SCN. | 
| DROP_TIME | DATE | The time when the datafile was dropped. If a new datafile with the same file number is discovered then the DROP_TIMEis set toCREATION_TIMEfor the datafile; otherwise the value is set toRC_CHECKPOINT.CKP_TIME. | 
| BYTES | NUMBER | The size of the datafile in bytes. | 
| BLOCKS | NUMBER | The size of the datafile in blocks. | 
| BLOCK_SIZE | NUMBER | The size of the data blocks in bytes. | 
| NAME | VARCHAR2(1024) | The datafile filename. | 
| STOP_CHANGE# | NUMBER | For offline or read-only datafiles, the SCN value such that no changes in the redo stream at an equal or greater SCN apply to this file. | 
| STOP_TIME | DATE | For offline normal or read-only datafiles, the time beyond which there are no changes in the redo stream that apply to this datafile. | 
| READ_ONLY | NUMBER | 1 if the file is read-only; otherwise 0. | 
| RFILE# | NUMBER | The relative file number of this datafile within its tablespace. | 
| INCLUDED_IN_DATABASE_BACKUP | VARCHAR2(3) | Indicates whether this tablespace is included in whole database backups: YESorNO. TheNOvalue occurs only ifCONFIGUREEXCLUDEwas run on the tablespace that owns this datafile. | 
| AUX_NAME | VARCHAR2(1024) | Indicates the auxiliary name for the datafile as set by CONFIGUREAUXNAME. |