RAC/OPS? A guess: obj$ is a very popular table (and possibly RAC-caches-wide-spread one ;) -- some its blocks were not in the local cache. Does it take 2-3 mins everytime you launch the query? Probably somebody else is doing some manipulations with obj# actively creates/alters/drops objects?
Check related RAC statistics regarding to global cache and V$CACHE_TRANSFER. Probably it's not an obj$ but the wait and FTS look suspicious. To speed up the query you might want to use user_types or write our own to avoid FTS. -- Vladimir Begun The statements and opinions expressed here are my own and do not necessarily represent those of Oracle Corporation. Jamadagni, Rajendra wrote:
Does any know how to speed up following query?
Select *
from dba_types
/
It is taking about 2-3 minutes on my 9202 database. I see a lot of Global Cache waits. The hammer shows following information ...
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