SNAP_ID | 
NUMBER | 
NOT NULL | 
Unique snapshot ID | 
DBID | 
NUMBER | 
NOT NULL | 
Database ID for the snapshot | 
INSTANCE_NUMBER | 
NUMBER | 
NOT NULL | 
Instance number for the snapshot | 
CAPTURE_NAME | 
VARCHAR2(30) | 
NOT NULL | 
Name of the capture process | 
STARTUP_TIME | 
DATE | 
NOT NULL | 
Time that the capture process was last started | 
LAG | 
NUMBER | 
  | 
Delay (in seconds) between the creation and capture of the most recently captured message | 
TOTAL_MESSAGES_CAPTURED | 
NUMBER | 
  | 
Total changes captured since the capture process was last started | 
TOTAL_MESSAGES_ENQUEUED | 
NUMBER | 
  | 
Total number of messages enqueued since the capture process was last started | 
ELAPSED_RULE_TIME | 
NUMBER | 
  | 
Elapsed time (in hundredths of a second) evaluating rules since the capture process was last started | 
ELAPSED_ENQUEUE_TIME | 
NUMBER | 
  | 
Elapsed time (in hundredths of a second) enqueuing messages since the capture process was last started | 
ELAPSED_REDO_WAIT_TIME | 
NUMBER | 
  | 
Elapsed time (in hundredths of a second) spent by the capture process in the WAITING FOR REDO state | 
ELAPSED_PAUSE_TIME | 
NUMBER | 
  | 
Elapsed pause time |