Re: Database Performance

kskasi_at_hotmail.com wrote:
>
> Hello everyone
>
> The problem is that, the biggest table we have in our system has got
> only about 50,000 records. But the system seems to be slow even with
> those many records. Our DBA feels that enough space wern't alloted to
> the tables and they might be sitting in multiple extends. I had a look
> at the extends and I did notice that there are about 7 - 10 extends for
> the big table and some of the indexes. According to him, if there are
> more number of extends then oracle has to search through all the extends
> which takes more time. I had a look at Oracle documentation and it
> dosen't mention about this at all. I just want a second opinion on this
> before I drop the tables and recreate them with enough space. I guess I
> can rebuild the indexes with enough space but the tables has to be
> dropeed and reloaded. Any help would be appreciated
>
> Cheers...kasi

The multiple extent myth is exactly that... a myth

Have a read up on locally managed tablespaces which by their very nature are typically multiextent...

HTH

-- 
===========================================
Connor McDonald
http://www.oracledba.co.uk

We are born naked, wet and hungry...then things get worse