# File monit/lib/symbiosis/monitor/state_db.rb, line 47
      def update(test, exitstatus, output, timestamp, last_timestamp)
        @dbh.execute("UPDATE #{@tbl_name}
          SET output = ?, timestamp = ?, exitstatus = ? 
          WHERE test = ? AND timestamp = ?", 
          output, timestamp.to_i, exitstatus, test, last_timestamp.to_i
        )
      end