| 
 
DB_KEY   | 
 
NUMBER   | 
 
NOT NULL   | 
 
The primary key for the target database. Use this column to form a join with almost any other catalog view.   | 
| 
 
DBINC_KEY   | 
 
NUMBER   | 
 
NOT NULL    | 
 
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)   | 
 
NOT NULL   | 
 
The DB_NAME of the database incarnation to which this record belongs.   | 
| 
 
TS#    | 
 
NUMBER   | 
 
NOT NULL   | 
 
The tablespace identifier 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)   | 
 
NOT NULL   | 
 
The tablespace name. The name may exist multiple times in the same incarnation if the tablespace is dropped and re-created.   | 
| 
 
CREATION_CHANGE#   | 
 
NUMBER   | 
 
NOT NULL   | 
 
The creation SCN (from the first datafile).   | 
| 
 
CREATION_TIME   | 
 
DATE   | 
 
   | 
 
The creation time of the tablespace. NULL for 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 the DROP_CHANGE# is set to CREATION_CHANGE# for the tablespace; otherwise, the value is set to RC_CHECKPOINT.CKP_SCN.    | 
| 
 
DROP_TIME   | 
 
DATE   | 
 
   | 
 
The date when the tablespace was dropped.   |