Oracle 统计表空间和对象历史增长量

最近7天内 每天(某个)表空间的增长量

col TS_NAME for a15
SELECT a.snap_id,
a.rtime,
c.tablespace_name ts_name,
round(a.tablespace_size * c.block_size / 1024 / 1024 / 1024, 2) TOTAL_SIZE_GB,
round(a.tablespace_usedsize * c.block_size / 1024 / 1024 / 1024, 2) USED_SIZE_GB,
round(a.tablespace_maxsize * c.block_size / 1024 / 1024 / 1024, 2) MAX_SIZE_GB,
round((a.tablespace_size - a.tablespace_usedsize) * c.block_size / 1024 / 1024 / 1024, 2) FREE_SIZE_GB,
round(a.tablespace_usedsize / a.tablespace_size * 100, 2) pct_used
FROM dba_hist_tbspc_space_usage a,
(SELECT tablespace_id,
substr(rtime, 1, 10) rtime,
max(snap_id) snap_id
FROM dba_hist_tbspc_space_usage nb
group by tablespace_id, substr(rtime, 1, 10)) b,
dba_tablespaces c,
v$tablespace d
where a.snap_id = b.snap_id
and a.tablespace_id = b.tablespace_id
and a.tablespace_id = d.TS#
and d.NAME = c.tablespace_name
and d.NAME = 'USERS'
and to_date(a.rtime, 'mm/dd/yyyy hh24:mi:ss') >= sysdate - 7
order by a.tablespace_id, to_date(a.rtime, 'mm/dd/yyyy hh24:mi:ss') desc;

每个AWR快照间的(某个)表空间的增长量

col TS_NAME for a15
select distinct a.snap_id, 
a.rtime,
d.NAME ts_name,
round(a.tablespace_maxsize * c.block_size / 1024 / 1024 / 1024, 2) MAX_SIZE_GB,
round(a.tablespace_size * c.block_size / 1024 / 1024 / 1024, 2) TOTAL_SIZE_GB,
round(a.tablespace_usedsize * c.block_size / 1024 / 1024 / 1024, 2) USED_SIZE_GB,
round((a.tablespace_size - a.tablespace_usedsize) * c.block_size / 1024 / 1024 / 1024, 2) FREE_SIZE_GB,
round(a.tablespace_usedsize / a.tablespace_size * 100, 2) pct_used
from DBA_HIST_TBSPC_SPACE_USAGE a,
dba_hist_snapshot sn,
dba_tablespaces c,
V$TABLESPACE d
where a.snap_id = sn.snap_id
and d.TS# = a.TABLESPACE_ID
and d.NAME = 'USERS'
and sn.end_interval_time between to_timestamp('2019-12-01','YYYY-MM-DD') and to_timestamp('2019-12-02','YYYY-MM-DD')
order by a.snap_id desc;

 某个表空间下的对象在某个AWR快照之间的增长量

-- DELTA_USED_SIZE_GB 已用空间的增长量
select distinct a.snap_id,
to_char(sn.BEGIN_INTERVAL_TIME, 'YYYY-MM-DD hh24:mi:ss') BEGIN_TIME,
to_char(sn.END_INTERVAL_TIME, 'YYYY-MM-DD hh24:mi:ss') END_TIME,
b.name TBS_NAME,
c.owner,
c.object_name,
c.object_type,
round(a.space_used_total / 1024 / 1024 / 1024, 2) TOTAL_USED_SIZE_GB,
round(a.space_used_delta / 1024 / 1024 / 1024, 2) DELTA_USED_SIZE_GB
from dba_hist_seg_stat a,
dba_hist_snapshot sn,
V$TABLESPACE b,
dba_hist_seg_stat_obj c
where a.snap_id = sn.snap_id
and a.obj# = c.obj#
and a.TS# = b.TS#
and b.NAME = 'USERS'
and a.snap_id between 17958 and 17959
order by DELTA_USED_SIZE_GB desc,a.snap_id desc;

在特定时间段的AWR快照之间的数据库对象的增长量

select obj.owner, obj.object_name,obj.OBJECT_TYPE,a.TS#,
to_char(sn.BEGIN_INTERVAL_TIME, 'YYYY-MM-DD hh24:mi:ss') BEGIN_TIME,
to_char(sn.END_INTERVAL_TIME, 'YYYY-MM-DD hh24:mi:ss') END_TIME,
round(a.space_used_delta / 1024 / 1024 / 1024, 2) DELTA_USED_SIZE_GB
from dba_hist_seg_stat a,
dba_hist_snapshot sn,
dba_objects obj
where sn.snap_id = a.snap_id
and obj.object_id = a.obj#
and obj.owner not in ('SYS','SYSTEM')
and end_interval_time between to_timestamp('01-12-2019','DD-MM-RRRR') and to_timestamp('02-12-2019','DD-MM-RRRR')
order by DELTA_USED_SIZE_GB desc,obj.owner, obj.object_name

最近七天数据库的增长情况，这个只是一个估算值

select sum(space_used_total) / 1024 / 1024 / 1024 "last 7 days db increase - G"
from dba_hist_seg_stat s, dba_hist_seg_stat_obj o, dba_hist_snapshot sn
where s.obj# = o.obj#
and sn.snap_id = s.snap_id
and begin_interval_time > sysdate - 8
order by begin_interval_time

表空间暴涨原因核查
http://blog.itpub.net/28389881/viewspace-1301550/

查看表空间每天增长和每周增长情况

http://blog.itpub.net/24500180/viewspace-1062905/

一文看懂Oracle查询表空间的每日增长量和历史情况统计

http://www.solves.com.cn/it/sjk/Oracle/2019-10-14/6070.html