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
