THREAD# | 
NUMBER | 
Thread number | 
STATUS | 
VARCHAR2(6) | 
Thread status (OPEN| CLOSED) | 
ENABLED | 
VARCHAR2(8) | 
Enabled status: DISABLED, (enabled) PRIVATE, or (enabled) PUBLIC | 
GROUPS | 
NUMBER | 
Number of log groups assigned to this thread | 
INSTANCE | 
VARCHAR2(16) | 
Instance name, if available | 
OPEN_TIME | 
DATE | 
Last time the thread was opened | 
CURRENT_GROUP# | 
NUMBER | 
Current log group | 
SEQUENCE# | 
NUMBER | 
Sequence number of current log | 
CHECKPOINT_CHANGE# | 
NUMBER | 
SCN at last checkpoint | 
CHECKPOINT_TIME | 
DATE | 
Time of last checkpoint | 
ENABLE_CHANGE# | 
NUMBER | 
SCN at which thread was enabled | 
ENABLE_TIME | 
DATE | 
Time of enable SCN | 
DISABLE_CHANGE# | 
NUMBER | 
SCN at which thread was disabled | 
DISABLE_TIME | 
DATE | 
Time of disable SCN | 
LAST_REDO_SEQUENCE# | 
NUMBER | 
Last redo sequence number written by LGWR | 
LAST_REDO_BLOCK | 
NUMBER | 
Last redo block written by LGWR | 
LAST_REDO_CHANGE# | 
NUMBER | 
SCN of last redo for the thread | 
LAST_REDO_TIME | 
DATE | 
Time of last redo for the thread |