How to get database growth month wise

Question

Hi All,
Can any one help me getting the growth of production database month wise for the current year.
I mean I need a script which will display the growth of my database month wise for the year 2010.
Regards,

Answer 1

hi,
try something along the lines of this
--Run the following create table to create segment info.
create table stats$segment_info as
select
  sysdate snap_time,owner, segment_name,segment_type , tablespace_name,sum(bytes) bytes from dba_segments group by owner,segment_type, segment_name,tablespace_name /
-- Run the following once a calendar month via dba_jobs.
insert into stats$segment_info
select
sysdate snap_time,owner, segment_name,segment_type , tablespace_name,sum(bytes) bytes from dba_segments group by owner,segment_type, segment_name,tablespace_name / commit;
-- run the following report to get tablesapace growth
column this_mon new_value this_mon
column last_mon new_value last_mon
column prev_mon new_value prev_mon
select to_char(sysdate,'MON YYYY') This_mon
     , To_char(add_months(sysdate,-1),'MON YYYY') Last_mon
     , to_char(add_months(sysdate,-2),'MON YYYY') prev_mon from dual;
column mins format 99999
column size_mb heading '&&this_mon' format 99999 column size_mb2 heading '&&prev_mon' format 99999 column size_mb1 heading '&&last_mon' format 99999
column growth heading 'Growth(%)|   in   |last month' format 9999.99
select tablespace_name,
--       to_char(snap_time,'MON YYYY') Month
       max(decode(trunc(snap_time,'MON'),trunc(add_months(sysdate,-2),'MON'),size_m,0))  size_mb2
      ,max(decode(trunc(snap_time,'MON'),trunc(add_months(sysdate,-1),'MON'),size_m,0))  size_mb1
      ,max(decode(trunc(snap_time,'MON'),trunc(sysdate,'MON'),size_m,0))  size_mb
       ,100*(max(decode(trunc(snap_time,'MON'),trunc(sysdate,'MON'),size_m,0))
     -    max(decode(trunc(snap_time,'MON'),trunc(add_months(sysdate,-1),'MON'),size_m,0)))
                 /max(decode(trunc(snap_time,'MON'),trunc(add_months(sysdate,-1),'MON'),size_m,1)) growth from (select  tablespace_name, snap_time
     ,sum(bytes)/1024/1024 size_M
from stats$segment_info
  where snap_time > trunc(add_months(sysdate,-2),'MON')-2
group by tablespace_name,snap_time) a
group by tablespace_name
order by tablespace_name
/as far as I am aware this is database independent.
regards
Alan