DBA_HIST_SEG_STAT Shows Incorrect Information

(Doc ID 788892.1)

Last updated on DECEMBER 06, 2016

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 10.2 to 11.2]
Information in this document applies to any platform.


DBA_HIST_SEG_STAT is always showing the SPACE_USED_DELTA
for tables as zero which is not correct.

For eg for table SREQUEST:

SQL> select last_analyzed from dba_tables where table_name='SREQUEST';

13-FEB-2009 06:17

SQL> select bytes/1024/1024 from dba_segments where segment_name='SREQUEST';


select trunc(begin_interval_time),sum(SPACE_USED_DELTA)/1024/1024
from dba_hist_seg_stat a,dba_hist_snapshot b where a.snap_id=b.snap_id
and obj# in (select object_id from dba_objects where object_name in ('SREQUEST'))
group by trunc(begin_interval_time) order by 1;

----------------- -------------------------------
07-FEB-2009 00:00 0
08-FEB-2009 00:00 0
09-FEB-2009 00:00 0
10-FEB-2009 00:00 0
11-FEB-2009 00:00 0
12-FEB-2009 00:00 0
13-FEB-2009 00:00 0
14-FEB-2009 00:00 0
15-FEB-2009 00:00 0


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