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RE: DATAFILE??

From: Marquez, Chris <cmarquez_at_collegeboard.org>
Date: Tue, 18 Oct 2005 10:49:25 -0400
Message-ID: <B30C2483766F9342B6AEF108833CC84E0465D2EB@ecogenemld50.Org.Collegeboard.local>


I don't know...thought about it, never cared to investigate, never *needed* to know.
But what is Oracle algorithm for disbursing data amongst available datafiles?

I do know that in every shop I've been, if someone (more experienced DBA) accidentally adds a datafile they would just resize it to very small size...the inexperienced DBA (I've done it too) drops that datafiile leaving a hole.

Chris Marquez
Oracle DBA

-----Original Message-----
From: oracle-l-bounce_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Yavor Ivanov Sent: Tuesday, October 18, 2005 5:23 AM
To: Oracle Mailing List; oracle.tutorials_at_gmail.com Subject: Re: DATAFILE??

        I guess you are trying to do some load-balansinag and the 5 datafiles are on diferent storage groups? Because I cannot think of another case when datafile matters.

        So I *think* is is possible to track down the datafile by rowid, but is is quite hard work. But even if you find out where do you insert, you do not have _any_ control over this. And since it is only for looking purposes, you may use v$filestat.

	Rgds,
	Yavor
	

On Tue, 18 Oct 2005 11:42:50 +0300, computer centre <compute_at_ponyneedles.com> wrote:

> Hi TO ALL
>
> I have a doubt. Plz do reply. We have an Oracle 10g R1 db running
here.
> we have 5 datafiles of 2 gb each. Now we use Oracle Forms as front
end.
> Now as the daily transactions carry on i want to know how the data is
> stored in the database? I mean in which file out of the 5. Is it done
> randomly?
> Is there any query r method to find out in which datafile the data is
> stored.
> All the files r online. ???
>
> Plz do reply
>
> Thank You
>
> Imran Mohajir
> NIIPL.
>
>
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Received on Tue Oct 18 2005 - 09:52:10 CDT

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