Mailing Lists: Apple Mailing Lists

Image of Mac OS face in stamp
 
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Poor Oracle performance? getting rid of bind variables



Ken Anderson wrote:
> According to the DBA, we're using the Rule Based Optimizer, not the Cost
> Based Optimizer, so therefore, no statistics.

Well, RBO is deprecated in 10g and CBO is far superior to it.
It's completely off-topic but I can't understand why one could prefer
RBO to CBO, which is around since release 7.

You didn't say which version do you use, I suspect it can be quite old.

> They claim there are indexes in on the table, but running a query
> against user_indexes returns 0 rows.

Be sure that you query while logged as user that owns this table and
table name is spelled correctly.

> Unfortunately, their contention is that I must be crazy, and are not
> paying much attention to me.  There aren't any other WO developers here,
> so they are not very helpful when I tell them that I can do queries
> without bind variables.

Ok we've defined the problem - it's communication, not technology...

-- 
Wiktor Moskwa
 _______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/webobjects-dev/email@hidden

This email sent to email@hidden

References: 
 >Re: Poor Oracle performance? getting rid of bind variables (From: Ken Anderson <email@hidden>)
 >Re: Poor Oracle performance? getting rid of bind variables (From: Wiktor Moskwa <email@hidden>)
 >Re: Poor Oracle performance? getting rid of bind variables (From: Ken Anderson <email@hidden>)
 >Re: Poor Oracle performance? getting rid of bind variables (From: Wiktor Moskwa <email@hidden>)
 >Re: Poor Oracle performance? getting rid of bind variables (From: Guido Neitzer <email@hidden>)
 >Re: Poor Oracle performance? getting rid of bind variables (From: Wiktor Moskwa <email@hidden>)
 >Re: Poor Oracle performance? getting rid of bind variables (From: Ken Anderson <email@hidden>)



Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2007 Apple Inc. All rights reserved.