@seg_top_logreads_10g.sql
select
object_name "Object Name"
, tablespace_name "Tablespace Name"
, object_type "Object Type"
, logical_reads_total "Logical Reads"
, ratio "%Total"
from(
select n.owner||'.'||n.object_name||decode(n.subobject_name,null,null,'.'||n.subobject_name) object_name
, n.tablespace_name
, case when length(n.subobject_name) < 11 then
n.subobject_name
else
substr(n.subobject_name,length(n.subobject_name)-9)
end subobject_name
, n.object_type
, r.logical_reads_total
, round(r.ratio * 100, 2) ratio
from dba_hist_seg_stat_obj n
, (select *
from (select e.dataobj#
, e.obj#
, e.dbid
, e.logical_reads_total - nvl(b.logical_reads_total, 0) logical_reads_total
, ratio_to_report(e.logical_reads_total - nvl(b.logical_reads_total, 0)) over () ratio
from dba_hist_seg_stat e
, dba_hist_seg_stat b
where b.snap_id = 2694
and e.snap_id = 2707
and b.dbid = 37933856
and e.dbid = 37933856
and b.instance_number = 1
and e.instance_number = 1
and e.obj# = b.obj#
and e.dataobj# = b.dataobj#
and e.logical_reads_total - nvl(b.logical_reads_total, 0) > 0
order by logical_reads_total desc) d
where rownum <= 100) r
where n.dataobj# = r.dataobj#
SEE CODE DEPOT FOR FULL SCRIPTS
)
order by logical_reads_total desc;
@table_growth_status
set serveroutput on
execute dbms_output.enable(buffer_size => NULL);**
Declare
v_BaselineSize number(20);
v_CurrentSize number(20);
v_TotalGrowth number(20);
v_Space number(20);
cursor usageHist is
select a.snap_id,
SNAP_TIME,
sum(TOTAL_SPACE_ALLOCATED_DELTA) over ( order by a.SNAP_ID) ProgSum
from
(select SNAP_ID,
sum(SPACE_ALLOCATED_DELTA) TOTAL_SPACE_ALLOCATED_DELTA
from DBA_HIST_SEG_STAT
group by SNAP_ID
having sum(SPACE_ALLOCATED_TOTAL) <> 0
order by 1 ) a,
(select distinct SNAP_ID,
to_char(END_INTERVAL_TIME,'DD-Mon-YYYY HH24:Mi') SNAP_TIME
from DBA_HIST_SNAPSHOT) b
where a.snap_id=b.snap_id;
Begin
select sum(SPACE_ALLOCATED_DELTA) into v_TotalGrowth from DBA_HIST_SEG_STAT;
select sum(bytes) into v_CurrentSize from dba_segments;
v_BaselineSize := v_CurrentSize - v_TotalGrowth ;
dbms_output.put_line('SNAP_TIME Database Size(MB)');
for row in usageHist loop
v_Space := (v_BaselineSize + row.ProgSum)/(1024*1024);
dbms_output.put_line(row.SNAP_TIME || ' ' || to_char(v_Space) );
end loop;
end;
@Oracle growth report at the table level
set feedback off
set pages 80
set linesize 150
spool /tmp/weekly_growth.txt
ttitle "Total Disk Used"
select sum(space_used_delta) / 1024 / 1024 "Space used (M)", sum(c.bytes) / 1024 / 1024 "Total Schema Size (M)",
round(sum(space_used_delta) / sum(c.bytes) * 100, 2) || '%' "Percent of Total Disk Usage"
from
dba_hist_snapshot sn,
dba_hist_seg_stat a,
dba_objects b,
dba_segments c
where end_interval_time > trunc(sysdate) - &days_back
and sn.snap_id = a.snap_id
and b.object_id = a.obj#
and b.owner = c.owner
and b.object_name = c.segment_name
and c.owner = '&schema_name'
and space_used_delta > 0;
ttitle "Total Disk Used by Object Type"
select c.segment_type, sum(space_used_delta) / 1024 / 1024 "Space used (M)", sum(c.bytes) / 1024 / 1024 "Total Space (M)",
round(sum(space_used_delta) / sum(c.bytes) * 100, 2) || '%' "Percent of Total Disk Usage"
from
dba_hist_snapshot sn,
dba_hist_seg_stat a,
dba_objects b,
dba_segments c
where end_interval_time > trunc(sysdate) - &days_back
and sn.snap_id = a.snap_id
and b.object_id = a.obj#
and b.owner = c.owner
and b.object_name = c.segment_name
and space_used_delta > 0
and c.owner = '&schema_name'
group by rollup(segment_type);
spool off@top_grow_seg
select
so.owner,
so.object_name,
--so.subobject_name,
so.object_type,
so.tablespace_name,
round(sum(ss.space_used_delta)/1024/1024) growth_mb
from
dba_hist_seg_stat ss,
dba_hist_seg_stat_obj so
where
ss.obj# = so.obj#
and ss.dataobj# = so.dataobj#
and so.owner != '** MISSING **' -- segments already gone
and so.object_name not like 'BIN$%' -- recycle-bin
and so.object_type not like 'LOB%'
and ss.snap_id > (
select min(sn.snap_id)
from dba_hist_snapshot sn
where
sn.dbid = (select dbid from v$database)
and sn.end_interval_time > trunc(sysdate) - &DAYS_BACK
)
group by
so.owner,
so.object_name,
--so.subobject_name,
so.object_type,
so.tablespace_name
order by 5 desc
fetch first &TOP rows only;@tablespace_growth
col ts_mb for 999,999,999,999.90
col max_mb for 999,999,999,999.90
col used_mb for 999,999,999,999.90
col last_mb for 999,999,999,999.90
col incr for 999,999.90
select * from (
select v.name
, v.ts#
, s.instance_number
, h.tablespace_size
* p.value/1024/1024 ts_mb
, h.tablespace_maxsize
* p.value/1024/1024 max_mb
, h.tablespace_usedsize
* p.value/1024/1024 used_mb
, to_date(h.rtime, 'MM/DD/YYYY HH24:MI:SS') resize_time
, lag(h.tablespace_usedsize * p.value/1024/1024, 1, h.tablespace_usedsize * p.value/1024/1024)
over (partition by v.ts# order by h.snap_id) last_mb
, (h.tablespace_usedsize * p.value/1024/1024)
- lag(h.tablespace_usedsize * p.value/1024/1024, 1, h.tablespace_usedsize * p.value/1024/1024)
over (partition by v.ts# order by h.snap_id) incr
from dba_hist_tbspc_space_usage h
, dba_hist_snapshot s
, v$tablespace v
, dba_tablespaces t
, v$parameter p
where h.tablespace_id = v.ts#
and v.name = t.tablespace_name
and t.contents not in ('UNDO', 'TEMPORARY')
and p.name = 'db_block_size'
and h.snap_id = s.snap_id
/* For a specific time */
and s.begin_interval_time > sysdate - 1/12
/* For a specific tablespace */
and v.ts# = 1
order by v.name, h.snap_id asc)
where incr > 0;
When used as a base query a summary of tablespace growth history is available for as far back as AWR data is retained:
break on resized
with ts_history as (
select * from (
select v.name
, v.ts#
, s.instance_number
, h.tablespace_size
* p.value/1024/1024 ts_mb
, h.tablespace_maxsize
* p.value/1024/1024 max_mb
, h.tablespace_usedsize
* p.value/1024/1024 used_mb
, to_date(h.rtime, 'MM/DD/YYYY HH24:MI:SS') resize_time
, lag(h.tablespace_usedsize * p.value/1024/1024, 1, h.tablespace_usedsize * p.value/1024/1024)
over (partition by v.ts# order by h.snap_id) last
, (h.tablespace_usedsize * p.value/1024/1024)
- lag(h.tablespace_usedsize * p.value/1024/1024, 1, h.tablespace_usedsize * p.value/1024/1024)
over (partition by v.ts# order by h.snap_id) incr
from dba_hist_tbspc_space_usage h
, dba_hist_snapshot s
, v$tablespace v
, dba_tablespaces t
, v$parameter p
where h.tablespace_id = v.ts#
and v.name = t.tablespace_name
and t.contents not in ('UNDO', 'TEMPORARY')
and p.name = 'db_block_size'
and h.snap_id = s.snap_id
order by v.name, h.snap_id asc)
where incr > 0)
select to_char(resize_time, 'YYYY-MM') as resized
, name
, sum(incr) incr
from ts_history
group by name
, to_char(resize_time, 'YYYY-MM')
order by 1, 3 desc;
来源：oschina
链接：https://my.oschina.net/zhiyonghe/blog/3164568