select intsize_csec ,to_char(begin_time,'DD-MON-YY HH24:MI') Time,metric_name,roun                                                                                                                d(value,2) from v$sysmetric_history where end_time >  sysdate-5/24/60 and metric_name='Aver                                                                                                                age Active Sessions' order by 2 desc