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Re: My first large table

From: Daniel Morgan <damorgan_at_exxesolutions.com>
Date: Wed, 13 Aug 2003 12:57:43 -0700
Message-ID: <3F3A9837.E43E289E@exxesolutions.com>


John Leslie wrote:

> Thanks to evetyone for their replies.
>
> I have one question....if I need to reorganise the indexes, how do I do it?
>
> John
>
> "Burton Peltier" <burttemp1REMOVE_THIS_at_bellsouth.net> wrote in message news:<MaqSa.7998$ci.2018_at_fe02.atl2.webusenet.com>...
> > The number of rows don't mean much and even if you grow to 20 Million rows,
> > it probably (depends on total table size) would perform well with the basic
> > type stuff covered like (as 1 example) no full table scans in explain plan
> > output.
> >
> > But, I think a more significant number is the total size of the table in
> > number of bytes, not rows.
> >
> > For example, 2 tables with the same number of rows could have significantly
> > different total sizes. If you have a lot of large columns with data, then
> > the total size of the table in Megabytes will be much higher than a table
> > with just a few small columns.
> >
> > --
> > "John Leslie" <johnleslie_at_madasafish.com> wrote in message
> > news:4412dd31.0307180425.760beccc_at_posting.google.com...
> > > Currently have a small database with no table having more than 50000
> > > rows.
> > > Now we have a requirement to load large amounts of data into a table
> > > which will be held for 3 months, resulting in several million rows.
> > > The data will be loaded using sqlldr and thereafter queried for adhoc
> > > report purposes only.
> > >
> > > Just want to know, what are the basic things I need to do in setting
> > > up this table to ensure decent performance.
> > >
> > > Do I need to reorganize the table indexes on regular basis to retain
> > > performance? If so how? As you can tell I'm quite new at this!
> > >
> > > Thanks in advance,
> > > JL

http://tahiti.oracle.com

--
Daniel Morgan
http://www.outreach.washington.edu/extinfo/certprog/oad/oad_crs.asp
damorgan_at_x.washington.edu
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Received on Wed Aug 13 2003 - 14:57:43 CDT

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