V$DATABASE

Columns
   ___________________________
 
   CONTROLFILE_CREATED
   ARCHIVE_CHANGE#
   OPEN_MODE
   VERSION_TIME
   OPEN_RESETLOGS
   CONTROLFILE_TIME
   CONTROLFILE_SEQUENCE#
   CONTROLFILE_TYPE
   LOG_MODE
   PRIOR_RESETLOGS_TIME
   PRIOR_RESETLOGS_CHANGE#
   RESETLOGS_TIME
   RESETLOGS_CHANGE#
   CREATED
   NAME
   DBID
   CONTROLFILE_CHANGE#
   CHECKPOINT_CHANGE#

Related Views:

V$ACTIVE_INSTANCES 
V$BGPROCESS 
V$BH 
V$COMPATIBILITY 
V$COMPATSEG 
V$COPY_CORRUPTION 
V$DATAFILE 
V$DATAFILE_COPY 
V$DATAFILE_HEADER 
V$DBFILE 
V$DBLINK 
V$DB_PIPES 
V$INSTANCE 
V$LICENSE 
V$OFFLINE_RANGE 
V$OPTION 
V$SGA 
V$SGASTAT 
V$TABLESPACE 
V$VERSION