| DB_KEY | NUMBER | The primary key for the target database. 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 tablespace ID in the target database. The TS#may exist multiple times in the same incarnation if the tablespace is dropped and re-created. | 
| NAME | VARCHAR2(30) | The tablespace name. The name may exist multiple times in the same incarnation if the tablespace is dropped and re-created. | 
| CREATION_CHANGE# | NUMBER | The creation SCN (from the first datafile). | 
| CREATION_TIME | DATE | The creation time of the tablespace. NULLfor offline tablespaces after creating the control file. | 
| DROP_CHANGE# | NUMBER | The SCN recorded when the tablespace was dropped. If a new tablespace with the same TS#is discovered then theDROP_CHANGE#is set toCREATION_CHANGE#for the tablespace; otherwise, the value is set toRC_CHECKPOINT.CKP_SCN. | 
| DROP_TIME | DATE | The date when the tablespace was dropped. | 
| INCLUDED_IN_DATABASE_BACKUP | VARCHAR2(3) | Indicates whether this tablespace is included in whole database backups: YESorNO. TheYESvalue occurs only ifCONFIGUREEXCLUDEwas run on the tablespace that owns this datafile. | 
| BIGFILE | VARCHAR2(3) | Indicates whether this tablespace is a tablespace created with the BIGFILEoption. | 
| TEMPORARY | VARCHAR2(3) | YESif tablespace is a locally managed temporary tablespace. Otherwise,NO. |