Oracle查询表空间的每日增长量

Oracle查询表空间的每日增长量

---10g和11g

SELECT a.snap_id,
       c.tablespace_name ts_name,
       to_char(to_date(a.rtime, 'mm/dd/yyyy hh24:mi:ss'), 'yyyy-mm-dd hh24:mi') rtime,
       round(a.tablespace_size * c.block_size / 1024 / 1024, 2) ts_size_mb,
       round(a.tablespace_usedsize * c.block_size / 1024 / 1024, 2) ts_used_mb,
       round((a.tablespace_size - a.tablespace_usedsize) * c.block_size / 1024 / 1024,
             2) ts_free_mb,
       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  to_date(a.rtime, 'mm/dd/yyyy hh24:mi:ss') >=sysdate-30
   order by a.tablespace_id,to_date(a.rtime, 'mm/dd/yyyy hh24:mi:ss') desc;

--12c

SELECT a.snap_id,
       a.con_id,
       e.name pdbname,
       c.tablespace_name ts_name,
       to_char(to_date(a.rtime, 'mm/dd/yyyy hh24:mi:ss'), 'yyyy-mm-dd hh24:mi') rtime,
       round(a.tablespace_size * c.block_size / 1024 / 1024, 2) ts_size_mb,
       round(a.tablespace_usedsize * c.block_size / 1024 / 1024, 2) ts_used_mb,
       round((a.tablespace_size - a.tablespace_usedsize) * c.block_size / 1024 / 1024,
             2) ts_free_mb,
       round(a.tablespace_usedsize / a.tablespace_size * 100, 2) pct_used
  FROM cdb_hist_tbspc_space_usage a, 
       (SELECT tablespace_id,
               nb.con_id,
               substr(rtime, 1, 10) rtime,
               max(snap_id) snap_id
          FROM dba_hist_tbspc_space_usage nb
         group by tablespace_id, nb.con_id,substr(rtime, 1, 10)) b,
         cdb_tablespaces c,
         v$tablespace d,
         V$CONTAINERS e
 where a.snap_id = b.snap_id
   and a.tablespace_id = b.tablespace_id
   and a.con_id=b.con_id
   and a.con_id=c.con_id
   and a.con_id=d.con_id
   and a.con_id=e.con_id
   and a.tablespace_id=d.TS#
   and d.NAME=c.tablespace_name
	 and  to_date(a.rtime, 'mm/dd/yyyy hh24:mi:ss') >=sysdate-30
   order by a.CON_ID,a.tablespace_id,to_date(a.rtime, 'mm/dd/yyyy hh24:mi:ss') desc;

--其它

select u.snap_id,
       to_char(s.begin_interval_time, 'yyyy-mm-dd hh24') begin_time,
       to_char(s.end_interval_time, 'yyyy-mm-dd hh24') end_time,
       t.name,
       round(u.tablespace_size * ts.block_size / 1024 / 1024, 2) ts_size_mb,
       round(u.tablespace_usedsize * ts.block_size / 1024 / 1024, 2) ts_used_mb,
       round((u.tablespace_size - u.tablespace_usedsize) * ts.block_size / 1024 / 1024,
             2) ts_free_mb,
       round(u.tablespace_usedsize / u.tablespace_size * 100, 2) pct_used
  from dba_hist_tbspc_space_usage u,
       v$tablespace               t,
       dba_hist_snapshot          s,
       dba_tablespaces            ts
 where u.tablespace_id = t.ts#
   and u.snap_id = s.snap_id
   and t.name = ts.tablespace_name
   and s.instance_number = 1
   and t.name = 'SYSTEM'
   and s.end_interval_time > sysdate - 7   
     order by snap_id desc;
      
      
     select u.snap_id,
       to_char(s.begin_interval_time, 'yyyy-mm-dd hh24') begin_time,
       to_char(s.end_interval_time, 'yyyy-mm-dd hh24') end_time,
       t.name,
       round(u.tablespace_size * ts.block_size / 1024 / 1024, 2) ts_size_mb,
       round(u.tablespace_usedsize * ts.block_size / 1024 / 1024, 2) ts_used_mb,
       round((u.tablespace_size - u.tablespace_usedsize) * ts.block_size / 1024 / 1024,
             2) ts_free_mb,
       round(u.tablespace_usedsize / u.tablespace_size * 100, 2) pct_used
  from cdb_hist_tbspc_space_usage u,
       v$tablespace               t,
       cdb_hist_snapshot          s,
       cdb_tablespaces            ts
 where u.tablespace_id = t.ts#
   and u.snap_id = s.snap_id
   and t.name = ts.tablespace_name
   and s.instance_number = 1
     and u.CON_ID=t.CON_ID
     and u.CON_ID=s.CON_ID
     and u.CON_ID=ts.CON_ID
   and t.name = 'SYSTEM'
   and s.end_interval_time > sysdate - 7   
   order by snap_id desc;

如何估算oracle  数据库，数据库对象历史增长情况

-----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  /

以下再补充两个类似的脚本脚本来之网上：

scripts:查看数据库历史增长情况

查看数据库历史增长情况  此处是通过计算数据库所有表空间的历史增长情况来计算数据库历史情况。  --不含undo和temp

with tmp as  (select rtime,  sum(tablespace_usedsize_kb) tablespace_usedsize_kb,  sum(tablespace_size_kb) tablespace_size_kb  from (select rtime,  e.tablespace_id,  (e.tablespace_usedsize) * (f.block_size) / 1024 tablespace_usedsize_kb,  (e.tablespace_size) * (f.block_size) / 1024 tablespace_size_kb  from dba_hist_tbspc_space_usage e,  dba_tablespaces f,  v$tablespace g  where e.tablespace_id = g.TS#  and f.tablespace_name = g.NAME  and f.contents not in ('TEMPORARY','UNDO'))  group by rtime)  select tmp.rtime,  tablespace_usedsize_kb,  tablespace_size_kb,  (tablespace_usedsize_kb -  LAG(tablespace_usedsize_kb, 1, NULL) OVER(ORDER BY tmp.rtime)) AS DIFF_KB  from tmp,  (select max(rtime) rtime  from tmp  group by substr(rtime, 1, 10)) t2  where t2.rtime = tmp.rtime;

--含undo和temp

with tmp as  (select min(rtime) rtime,  sum(tablespace_usedsize_kb) tablespace_usedsize_kb,  sum(tablespace_size_kb) tablespace_size_kb  from (select rtime,  e.tablespace_id,  (e.tablespace_usedsize) * (f.block_size) / 1024 tablespace_usedsize_kb,  (e.tablespace_size) * (f.block_size) / 1024 tablespace_size_kb  from dba_hist_tbspc_space_usage e,  dba_tablespaces f,  v$tablespace g  where e.tablespace_id = g.TS#  and f.tablespace_name = g.NAME)  group by rtime)  select tmp.rtime,  tablespace_usedsize_kb,  tablespace_size_kb,  (tablespace_usedsize_kb -  LAG(tablespace_usedsize_kb, 1, NULL) OVER(ORDER BY tmp.rtime)) AS DIFF_KB  from tmp,  (select min(rtime) rtime  from tmp  group by substr(rtime, 1, 10)) t2 where t2.rtime = tmp.rtime

##############################################################  SQL脚本:列出相关段对象在 快照时间内的使用空间的历史变化信息：

column owner format a16  column object_name format a36  column start_day format a11  column block_increase format 9999999999

select obj.owner, obj.object_name,  to_char(sn.BEGIN_INTERVAL_TIME,'RRRR-MON-DD') start_day,  sum(a.db_block_changes_delta) block_increase  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('17-FEB-2014','DD-MON-RRRR')  and to_timestamp('25-FEB-2014','DD-MON-RRRR')  group by obj.owner, obj.object_name,  to_char(sn.BEGIN_INTERVAL_TIME,'RRRR-MON-DD')  order by obj.owner, obj.object_name ;

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