OGG-00685
begin time {0,date} {0,time} prior to oldest log in log history. Last SQL executed <{1}>
Cause
The begin time that is specified with the ADD EXTRACT or ALTER EXTRACT command is prior to the oldest log that Extract can find.
Action
The most recent SQL that Extract can find is shown in the message. If possible, restore the log that contains the data from the specified timeframe from the backups. Otherwise, specify a start time during which there is redo history.