Archivelog Frequency

A script to check the frequency of log switches

col MidN format 999

col 1AM format 999

col 2AM format 999

col 3AM format 999

col 4AM format 999

col 5AM format 999

col 6AM format 999

col 7AM format 999

col 8AM format 999

col 9AM format 999

col 10AM format 999

col 11AM format 999

col Noon format 999

col 1PM format 999

col 2PM format 999

col 3PM format 999

col 4PM format 999

col 5PM format 999

col 6PM format 999

col 7PM format 999

col 8PM format 999

col 9PM format 999

col 10PM format 999

col 11PM format 999

select to_char(first_time,'mm/dd/yy') logdate,

sum(decode(to_char(first_time,'hh24'),'00',1,0)) "MidN",

sum(decode(to_char(first_time,'hh24'),'01',1,0)) "1AM",

sum(decode(to_char(first_time,'hh24'),'02',1,0)) "2AM",

sum(decode(to_char(first_time,'hh24'),'03',1,0)) "3AM",

sum(decode(to_char(first_time,'hh24'),'04',1,0)) "4AM",

sum(decode(to_char(first_time,'hh24'),'05',1,0)) "5AM",

sum(decode(to_char(first_time,'hh24'),'06',1,0)) "6AM",

sum(decode(to_char(first_time,'hh24'),'07',1,0)) "7AM",

sum(decode(to_char(first_time,'hh24'),'08',1,0)) "8AM",

sum(decode(to_char(first_time,'hh24'),'09',1,0)) "9AM",

sum(decode(to_char(first_time,'hh24'),'10',1,0)) "10AM",

sum(decode(to_char(first_time,'hh24'),'11',1,0)) "11AM",

sum(decode(to_char(first_time,'hh24'),'12',1,0)) "Noon",

sum(decode(to_char(first_time,'hh24'),'13',1,0)) "1PM",

sum(decode(to_char(first_time,'hh24'),'14',1,0)) "2PM",

sum(decode(to_char(first_time,'hh24'),'15',1,0)) "3PM",

sum(decode(to_char(first_time,'hh24'),'16',1,0)) "4PM",

sum(decode(to_char(first_time,'hh24'),'17',1,0)) "5PM",

sum(decode(to_char(first_time,'hh24'),'18',1,0)) "6PM",

sum(decode(to_char(first_time,'hh24'),'19',1,0)) "7PM",

sum(decode(to_char(first_time,'hh24'),'20',1,0)) "8PM",

sum(decode(to_char(first_time,'hh24'),'21',1,0)) "9PM",

sum(decode(to_char(first_time,'hh24'),'22',1,0)) "10PM",

sum(decode(to_char(first_time,'hh24'),'23',1,0)) "11PM"

from v$log_history

group by to_char(first_time,'mm/dd/yy')

order by 1

/