Oracle FAQ | Your Portal to the Oracle Knowledge Grid |
![]() |
![]() |
Home -> Community -> Mailing Lists -> Oracle-L -> Re: Index Usage
I am not sure about the "time" when the index was last
accessed, but SYS.OBJECT_USAGE should tell you if an
index was accessed or not (need to turn on index
monitoring).
You can use this following query to access the ASH tables for index usage for last 7 days (I'm still testing this) :
select p.object_owner "Index Owner",
p.object_name "Index Name", sum(t.disk_reads_total) "Disk Reads", sum(t.rows_processed_total) "Rows Processed" from dba_hist_sql_plan p, dba_hist_sqlstat t, dba_hist_snapshot s where p.sql_id = t.sql_id and t.snap_id = s.snap_id and p.object_type like '%INDEX%' and p.object_owner = &Your_owner
HTH,
Deepak
> I remember reading somewhere that in 10g you can see
> the last time an index
> was accessed, however after googling for it I am
> unable to find the name of
> the view that contains it. Anyone know where I
> should look or know it off
> the top of their head?
-- http://www.freelists.org/webpage/oracle-lReceived on Tue Oct 10 2006 - 22:55:36 CDT
![]() |
![]() |