V$lock, sys.obj$ very slow

Question

Hello,
I need to fetch wait time by object and that is why the query below. The problem: it takes forever :( any suggestions?
select vlock.ctime, vdb.name,sysdate
from v$lock vlock, sys.obj$ vdb
where block = 1
and type = 'TM'
and id1 = vdb.obj#
order by ctime desc
Thanks,
R

Answer 1

Hi,
This query should run, its not a heavy query. There could be other database related reasons which could be causing this.
Below is useful link which can give some good information (see posts from June 11, 2003):
http://asktom.oracle.com/pls/apex/f?p=100:11:0::::P11_QUESTION_ID:839412906735
Or just give RULE hint a try if you are using 9i and above.
select */*+ RULE */* vlock.ctime, vdb.name,sysdate
from v$lock vlock, sys.obj$ vdb
where block = 1
and type = 'TM'
and id1 = vdb.obj#
order by ctime desc