Increase in size of database extremely - need to monitor the size of the table

Hi all

I need help in the growth of the follow-up tables. It's that the database grows enormously from 192 G at 200 over five days, representing 5% increase in database size. The general scenario is that is that the db is growing 20% annually, but this increase in a week will cause future hardware problems.

Please advice to find the tables that is still growing.

Thank you
DBA Junr.

Hi Georges s/n, do not know if this will help you now, but I did something like this on a daily basis for about 3 years. Literally, I have the size of each segment on a daily basis for this time and can go back in the graphic history of growth. If I had the question you ask the subject that I would be able to tell you exactly what segments are developed. If you need this on a smaller time frame, you can change the data stored in the column "created_date' to all the hours I guess.

Anyway, here's the create statement.

create table db_segment_history
(
  db_segment_history_id     integer not null,
  owner                 varchar2(30),
  segment_name          varchar2(81),
  partition_name        varchar2(30),
  segment_type          varchar2(18),
  created_date          date default trunc(sysdate) not null,
  tablespace_name       varchar2(30),
  header_file           number,
  header_block          number,
  bytes                 number,
  blocks                number,
  block_size            number,
  extents               number,
  initial_extent        number,
  next_extent           number,
  min_extents           number,
  max_extents           number,
  pct_increase          number,
  freelists             number,
  freelist_groups       number,
  relative_fno          number,
  buffer_pool           varchar2(7)
);

create sequence db_segment_history_seq cache 1000;

create unique index xpkdb_segment_history on db_segment_history( db_segment_history_id );

alter table db_segment_history add ( constraint xpkdb_segment_history primary key ( db_segment_history_id )
using index );

create unique index ak1db_segment_history on db_segment_history(
     owner, segment_name, partition_name, segment_type, created_date );

create trigger db_segment_history_bir
before insert on db_segment_history
for each row
begin
     select     db_segment_history_seq.nextval
     into     :new.db_segment_history_id
     from     dual;
end;
/

This is the insert / select that I use.

insert into db_segment_history(
     owner, segment_name, created_date,
     partition_name, segment_type, tablespace_name,
     header_file, header_block, bytes,
     blocks, block_size, extents,
     initial_extent, next_extent, min_extents,
     max_extents, pct_increase, freelists,
     freelist_groups, relative_fno, buffer_pool )
select  owner, segment_name, trunc( sysdate ),
     partition_name, segment_type, tablespace_name,
     header_file, header_block, bytes,
     blocks, bytes/blocks block_size, extents,
     initial_extent, next_extent, min_extents,
     max_extents, pct_increase, freelists,
     freelist_groups, relative_fno, buffer_pool
from    dba_segments
where   tablespace_name in(
          select tablespace_name from dba_tablespaces where contents = 'PERMANENT' );

commit;

I hope this helps.
Michael Cunningham

Published by: Michael C on February 21, 2012 14:19

Tags: Database

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