How to retrieve old statistics backed up in SYSAUX tablespace.

Question

Hi, Folks
From 10g onward, Oracle stores statistics collected previously when new statistics is gathered. Old statistics can be queryed via dba_tab_stats_history. but dba_tab_stats_history view doesn't show values like histogram, rows, min, and max. I would like to compare old statistics with new ones. Is there any way to retrieve previous statistics data backed up in SYSAUX tablespace?
[oracle@rh01 ~]$ sqlplus '/as sysdba'
SQL*Plus: Release 10.2.0.3.0 - Production on Wed Sep 2 10:26:27 2009
Copyright (c) 1982, 2006, Oracle. All Rights Reserved.
Connected to:
Oracle Database 10g Enterprise Edition Release 10.2.0.3.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
SQL> desc dba_tab_stats_history
Name Null? Type
OWNER VARCHAR2(30)
TABLE_NAME VARCHAR2(30)
PARTITION_NAME VARCHAR2(30)
SUBPARTITION_NAME VARCHAR2(30)
STATS_UPDATE_TIME TIMESTAMP(6) WITH TIME ZONE
SQL>

Answer 1

If it is stored you can query it. The trick is knowing where it is stored and without specific information about what you are looking for there's not much I can do other than refer you to tables whose names begin with the prefix 'WRH.''
Try this for starters:
select table_name from dba_tables where table_name like 'WRH%STAT%';